Summarize the following court judgment. minal Appeal No. 146 of 1958. Appeal by special leave from the judgment and order dated April 14	 1957	 of the Bombay High Court at Rajkot in Criminal (jail) Appeal No. 73 of 1956. AND Criminal Appeal No. 174 of 1959. Appeal by special leave from the judgment and order dated June 4	 1956	 of the Calcutta High Court in Criminal Revision No. 623 of 1958. 13 H. R. Khanna and T. M. Sen	 for the appellant in Cr. A. No. 146 of 1958. Specimen handwritings of the accused had been taken during investigation while the accused was in police custody. These have been excluded from consideration by the Courts below on the ground that obtaining of such signatures offended article 20 (3)11 the courts holding that an element of compulsion was implicit in the accused being in police custody at the time the handwritings were taken. The mere fact that the accused was in police custody does not by itself imply that compulsion was used for obtaining the specimen handwritings. Even if there is compulsion	 it does not amount to testimonial compulsion. Action taken under sections 94 and 96 Criminal Procedure Code to secure production of documents though search warrants	 does not amount to compulsion within the meaning of article 20 (3). Section 73	 Evidence Act also contemplates the obtaining of specimen handwriting. If a person gives the specimen handwriting voluntarily 	it cannot be said that he was compelled to give it. If the police merely requests the accused	 then it does not amount to compulsion	 but if it directs the accused to write and if physical force is used or if there is any show of force or threat	 then alone would it be compulsion. Inducement is not compulsion. I.L.R. ; 1957 Mad. 66	 	 	 A.I.R. 1959 Bom. 865	 I.L.R. 	 A.I.R. 1955 Cal. 247	 I.L.R. 1952 Tr. Co. 447	 A.I.R. 1958 All. 119. Refers to Willis on Constitutional Law dealing with self incrimination. In A. 1. R. section 27 of the Evidence Act has been held to be constitutional. M.C. Setalvad	 Attorney General of India	 B. Sen and T. M. Sen	 for Intervener No. 1. There are four elements in article 20(3) which must be satisfied before a person can claim the protection of article 20(3)	 namely (i) he must be accused	 (ii) he must have been compelled	 (iii) he Must have 14 been compelled to be a witness and (iv) his witnessing must be against himself. There must be an element of compulsion	 a voluntary act is not compulsion. Coercion is an element of compulsion. In inducement or moral compulsion	 the mind is not free. There was nothing in England which prevented a voluntary statement. ; and (1960) 3 S.C.R. 116	 125. The fact whether a person has been compelled does not rest solely on the effect which the presence of a police officer might have on the mind of the person. I.L.R. 	 Willis p. 524	 A.I.R. 1955 Cal. 247. Even a direction under section 73	 Evidence Act would not amount to compulsion. A.I.R. 1958 All. 119	 Merely because a person who makes a statement is in police custody it cannot be inferred that compulsion has been used. Willis p. 521. Observations in Sharma 's case with regard to the words "to be a witness" are excessive. It would be useful to see what is the American fifth amendment. To be a witness means that a person either says something or writes something which he knows. He must depose or write as to something of which he has knowledge. In giving a thumb impression or specimen writing a person does not say or write anything against himself. section M. Sikri Advocate General	 Punjab	 N. section Bindra and D. Gupta	 for respondent in Cr. Nos. 110 and 111 of 58. Section 5 of the 	 permits the obtaining of finger prints of an accused person by order of a Magistrate. This is not hit by article 20 (3). Article 20 (3) does not apply to the stage of investigation. It only prohibits the compulsory examination or famishing of incriminatory statements or communication by the accused. It does not include the compulsory production of documents. Even if article 20 (3) prohibits the compulsory production of documents	 it does not prohibit the compulsory 15 examination of the body of the accused or any part of it. In order to test whether there has been compulsion or not it is the nature of the action of the authority or court that determines the question and not the state of mind of the accused. The privilege granted to an accused person under Art	 20 (3) is by its nature capable of waiver and if there is no protest	 it is deemed to have been waived. The Article deals with the stage of conviction. Wigmore vol. 8	 p.276	 304	 317 and 319. ; 	109; 	 and 1030. The word " 'witnesses" should be given its natural interpretation. The original rule in England was that you will not be put in court and compelled to give evidence against yourself and referred only to testimony given in court. Article 20 (3) gives the same guarantee. Wigmore vol. 8	 p. 623	 Phipson on Evidence	 9th Edition	 p.214. It protects extraction of incriminatory statements or communi cations	 but not the exhibition of body or any part of it for examination. Merely handing over of a document is not covered by the guarantee as it does not amount to communication. ; There is no compulsion if the witness or accused does not object. ; 	 76 L.Ed.211; 	 	 Wigmore vol. 8	 p. 399. section M. Bose Advorate General for the State of West Bengal	 B. Sen	 and P. K. Bose	 for appellant in Cr. 174 of 1959. The question concerned in Cr. A. No. 174 of 1959 is whether the obtaining of specimen handwriting under s.73 of the Evidence Act amounts to testimonial compulsion. Decision	 	 which hold that it is so are : A. 1. R. 1957 M. P.73	 A. I. R. 1959 M. P. 411; A. I. R. 1960 Ker.392; A. I. R. Willoughby vol. 2	 para 720	 29 L.Ed. Testimonial compulsion means that you cannot make a witness say what he does not want to say in court. Section 118	 Evidence Act indicates that "testify" means to make statements in Court and not statements outside court. Article 20(3) applies only to oral statements made before the court. section P. Verma	 for respondent in Cr. A. No. 146/1958. Sharma 's case puts the right construction on article 20(3). The question of inconvenience should not be taken into consideration. ; Article 20(3) could be split up into 6 components	 i. e. (i) No person	 (ii) accused of an offence	 (iii) shall be compelled	 (iv) to be	 (v) to be a witness	 and (vi) to be a witness against himself. In the present case it is not necessary to discuss (i). (ii) indicates a time whenever incrimination is eminent and the guarantee comes into play. " 'Accused of an offence" is merely descriptive of the person. Whenever a person is accused	 nothing obtained from him by compulsion can be used against him. ; ; ; ; "Accused of an offence" does not mean accused at the time when a person is compelled to provide evidence. A. I. R. (iii) In case of police custody there is irrefutable presumption of compulsion. A. I. R. In other cases it may be a question of fact whether there was compulsion or not. Compulsion means an act which is involuntary	 under threat	 coercion or inducement. It has to be seen what has motivated the act. Compulsion means any non voluntary positive act not of free volition. (iv) The words used are "	to be" and not 	to appear". This brings in the idea of all kinds of testimony (evidence) and removes all restrictions as to time and place. (v) To be a witness	 means to furnish evidence. Wigmore 8th vol. p.362. Best on Evidence p. 11 2. Phipson	 p. 2. ; A.I.R. 1960 Ker. 392; American Jurisprudence	 vol. 58	 p. 57. To be a witness against himself means to do a positive act which would incriminate him. A.I.R. 1956 Mad. 165. Compelling the production of any sort of evidentiary document which is likeiy to help the prosecution 17 is hit by the guarantee. The object of the guarantee is not to let a person degrade 'himself ; I.L.R. 1957 Cutt	 200. R. C. Datta	 for Intervener No. 3. P. section Safeer and R. section Gheba	 for appellant in Cr. Nos. 110 and 111 of 1958. The words used in article 20(3) are not "appear as a witness against himself. " It covers the stage of investigation also and protects all action of an accused person that may be used against him at the trial. Section 6 of the Prisoners Identification Act makes a person who refused to give his photograph or measurement	 guilty of an offence. No person can waive the fundamental right guaranteed under article 20(3). ; Any part of the evidence contributed to by the accused under compulsion is hit by the guarantee. H. R. Khanna in reply. Sections 1	 118	132 and 139 of the Evidence Act show that the words "to be a witness" means giving evidence in court and must he restricted to judicial proceedings. The mere fact that an accused person 'is in police custody does not raise any presumption. that compulsion has been used. August 4. The Judgment of Sinha C. J.	 Imam	 Gajendragadkar	 Subba Rao	 Wanchoo	 Raghubar Dayal	 Rajagopala Ayyangar and Mudholkar JJ.	 was delivered by SINHA C. J. These appeals have been beard together only insofar as they involve substantial questions of law as to the interpretation of the Constitution	 with particular reference to	 cl.(3) of article 20. This larger Bench was constituted in order to reexamine some of the propositions of law laid down by this Court in the case of M.P. Sharma vs Sathish Chandra(1)	because when one of the cases was heard by five of us	 we felt that (1) ; 18 some of the propositions therein laid down may have been too widely stated	 and	 therefore	 required to be restated with more particularity. We have not heard counsel for the parties ion the merits of the orders passed by the Courts below	 but have confined the discussions at the Bar	 insofar as they had any bearing on the questions of law relating to the interpretation of el. (3) of article 20 of the Constitution. It is not necessary to state in any detail the facts of each of the cases now before us. We shall	 therefore	 state only so much of the facts as have 'Occasioned calling in aid of the provisions of el. (3) of article 20 of the Constitution. In the first case	 namely	 Criminal Appeal 146 of 1958	 the. State of Bombay is the appellant	. The 	respondent was charged	 alongwith another person	 under section 302	 read with section 34 of the 1. P. C.	 as also under section 19(e) of the Indian Arms Act (XI of 1878). The Trial Court found him guilty of those charges and sentenced him to imprisonment for life under section 302	 read with section 34 of the I.P.C. and to. a term of two years rigorous imprisonment for the. offence under the Arms Act. At the trial the identification of the respondent	 as one of the two alleged culprits	 was the most important question to be decided by the Court. Besides other evidence	 the prosecution adduced in evidence a chit exhibit 5 alleged to be in his handwriting and said to have been given by him. In order to prove that exhibit 5 was in the handwriting of the respondent	 the police had obtained from him	 during the investigation	 three specimen handwritings of his on three separate	 sheets of paper which were marked as Exs. 27	 28 and 29. The disputed document	 namely	 Ex.5 was compared with the admitted handwritings on Exs. 27	 28 and 29 by the Handwriting Expert whose evidence was to the effect that they are all writings by the same person. At the trial and in the High Court	 19 the question was raised as to the admissibility of the specimen writings contained in Exs. 27	 28 and 29	 in view of the provisions of article 20(3) of the Constitution. It is an admitted fact that those specimen writings of the accused had been taken by the police while he was in police custody	 but it was disputed whether the accused had been compelled to give those writings within. the meaning of cl. (3) of article 20. The plea of the accused that he was forced by the Deputy Superintendent of Police to give those writings has not been accepted by the learned Trial Judge. But those documents have been excluded from consideration	 as inadmissible evidence	 on the ground 'that though there was no threat or force used by the police in obtaining those writings farm the accused person	 yet in the view of the Court ""the element of compulsion was implicit in his being at that time in police custody. " In this conclusion both the Trial Judge and the High Court have agreed. The identification of the accused person was also sought to be proved by the evidence of witnesses	 who identified him at an identification parade. But the holding of the identification parade has not been sought to be brought within the prohibition of cl. (3) of article 20. After eliminating the Exs. 27	 28 and 29 from their consideration the High Court	 on a consideration of the other evidence in the case	 came to the conclusion that the identity of the respondent had not been established beyond a reasonable doubt. Hence	 giving him the benefit of doubt	 they acquitted him. The State of Bombay moved this Court and obtained special leave to appeal from the Judgment and Order of acquittal	 passed by the High Court. On these facts	 the only questions of constitutional importance that this Bench has to determine are; (1) whether by the production of the specimen handwritings Exs. 27	 28	 and 29 the accused could be said to have been "a witness against himself ' within the meaning of article 20(3) of the 20 Constitution; and (2) whether the were fact that when those specimen handwritings had been given	 the accused person was in police custody could	 by itself	 amount to compulsion	 apart from any other circumstances which could be urged as vitiating the consent of the accused in giving those specimen handwritings. This Bench is not concerned with the further ques tion whether in all the circumstances "closed by the evidence in this case	 the accused could be said to have been compelled	 as a matter of fact	 to give. those specimens. In Criminal Appeals 110 and 111 of 1958	 which arose out of the same set of facts	 the accused person has been convicted by the Courts below under sections 380 and 457 of the I.P.C.	 as also under. s.19(f) of the Indian Arms Act. The facts of the case necessary for bringing out the points in controversy are that a shop in Hissar in Punjab was burgled. In the course of the burglary four double barrelled guns	 one single barrelled gun and a rifle were stolen. During his interrogation by the police at the investigation stage	 the appellant is alleged to have given the information that out of the arms stolen from the shop at Hissar he had buried one 22 bore rifle	 two 12 bore doublebarrelled gunk; and one 18 single barrelled gun at a certain place. It is alleged that as a consequence of the information thus given by the accused and on his pointing out the exact location where these buried articles could be found	 the rifles and guns were actually recovered. During the investigation the police had taken possession of certain glass panes and phials from the burgled shop which bore some palm and finger impressions (Exs. P10 to P12) In order to compare the impressions on those glass panes and phials with those of the accused the investigation police officer got the impressions of the palms and fingers of the accused taken in the presence of a Magistrate. On the evidence adduced by the prosecution	including the 21 fact of the recovery of the firearms and the evidence of the identity of the impressions of the accused taken as aforesaid	 he was convicted and sentenced by the Courts below to certain terms of imprisonment and was also ordered to pay a fine of one thousand rupees. On appeal	 the sentence of fine and imprisonment was modified by the Court of Appeal. In revision in the High Court	 both the revisional applications were dismissed. The convicted person prayed for and obtained the necessary certificate of fitness under article 134(1) (e) of the Constitution from the High Court of Punjab. The points raised in this Court were; (1) that section 27 of the Indian Evidence Act is violative of article 14 of the Constitution; and (2) the impressions of the appellant 's palms and fingers taken from him after his arrest	 which were compared with the impressions on the glass panes and phials	 were not admissible evidence in view of the provisions of article 20(3) of the Constitution. Though the provisions of sections 5 and 6 of the 	 (XXXIII of 1920) have not in terms been attacked as ultra vires article 20(3) of the Constitution	 the effect of the argument based on that article is to bring into controversy the constitutionality of sections 5 and 6 of the Act. As a matter of fact	 one of the propositions of law to be urged in support of the appeals is stated in these terms; "that sections 5 and 6 of the 	 read with article 20(3) of the Constitution render the evidence of measurements to be inadmissible". In the last case	 Criminal Appeal 174 of 1959	 the State of West Bengal has preferred this appeal by special leave granted by this Court under article 136(1) of the Constitution against the judgment and order of the High Court at Calcutta	 dated June 4	 1959	 passed in its revisional jurisdiction	 against an order of the Magistrate	 First Class	 Howrah; directing	 the respondent to give his 22 specimen writing and signature	 under section 73 of the Indian Evidence Act. It is only necessary to state the following facts in order to bring out the questions of law bearing on the interpretation of the Constitution. During the investigation of a criminal case relating to trafficking in 	contraband opium	 the respondent 's residence was searched and certain quantity of contraband opium was alleged to have been found in his possession. The respondent	 along with another person	 was produced before a Magistrate of the first Class at Howrah and was later released on bail. from the materials and statements obtained during the investigation of the case by the police	 it was considered that there were reasonable grounds to believe that the endorsement on the 	 back of certain railway receipts for consignment of goods seized at Howrah Railway Station was in the handwriting of the respondent	 and it was	 therefore	 necessary to take his specimen writing and signature for the purpose of comparison and verification. When the accused were produced before the Magistrate	 the Investigating Officer made a prayer to the Magistrate for taking specimen writing and signature of the respondent. On an adjourned date when the accused persons	 including the respondent	 were present in the Court of the Magistrate	 the respondent declined to give his specimen writing and signature	 contending that article 20 (3) of the Constitution prohibited any such specimens being taken against the will of the accused. After bearing the parties	 the learned Magistrate overruled the objection on behalf of the accused and allowed the prayer by the prosecution for taking the specimen writing and signature of the respondent. The respondent moved the High Court at Calcutta under section 439 of the Cr. P.C. and article 227 of the Constitution. The case was heard by a Division Bench consisting of J.P. Mitter and Bhattacharyya	 JJ	 on July 2 and 3	 1958	 but the judgment was not delivered until the 23 4th of June	 1959. The Court held that the prohibition contained in article 20 (3 of the Constitution applied: to the case of writing and signature to be taken	 as directed by the learned Magistrate. The Court. relied upon the decision of this Court in: M.P. Sharma 's case.(1) In coming to this conclusion	 the Division Bench disagreed with the previous decision of another Division Bench of that	 Court in the case of Sailendra Nath Sinha vs The State (2)	 which had laid down that a mere direction under s.73 of the Evidence Act to a person accused of an offence to give his specimen writing did not come within the prohibition of article 20 (3) of the Constitution. The earlier Bench further held that the decision of this Court in Sharma 's case(2)	 referred to above	 did not govern the case of direction given by the Court under s.73 of the Evidence Act for giving specimen writing. Instead of referring the question to a larger Bench	 the later Division Bench took upon itself to pronounce against the considered view of that Court in the earlier decision. The State of West Bengal naturally had to come up to this Court to get the constitutional issues determined because the issues raised were of far reaching importance in the investigation and trial of criminal cases. The main question which arises for determination in this appeal is whether a direction given by a Court to an accused person present in Court to give his specimen writing and signature for the purpose of comparison under the provisions of s.73 of the Indian Evidence Act infringes the fundamental right enshrined in article 20 (3) of the Constitution. The arguments at the Bar may be classified as taking three distinct lines. The first line	 on the one extreme	 may be said to have been taken by Mr. Sikri	 the Advocate General of Punjab	 and which may be characterised as a narrow view	 (1) ; (2) [1955] A. 1. R. Cal. 24 runs as follows: Cl. (3) aforesaid	 in view of its setting	 its history and the policy underlying	 the privilege accorded by the Constitution to an accused person	 should not be applied at 	he stage of investigation of an offence. It should be confined to cases of compulsory extraction of incriminating statements or communications by an accused person in Court	 the expression compelled to be a witness ' being understood as meaning being compelled to give oral testimony '. It does not include the compulsory production of documents. Similarly	 it does not prohibit the compulsory. exhibition or examination of the body of the accused	 or any part of it	 or the taking of specimen writ ing	 thumb impression of the palm or the feet or the fingers of an caused. Whether or not there has been compulsion should be judged by the nature of the action taxi by the authority	 or the Court that determines the controversy	 and not the state of mind of the accused. On the other extreme is the argument by Mr. S.P. Varma	 for the accused in the first case	 who contended that the clause aforesaid of the Constitution gives complete protection of the widest amplitude to an accused person	 irrespective of the time and place and of the nature of the evidence	 whether it is oral or documentary or material. The extreme form	 which his argument took can best be stated in his own words as follows : ""Anything caused	 by any kind of threat or inducement	 to be said or done	 by a person	 accused or likely to be accused of any. offence	 by non voluntary positive act or speech	 of that person which furthers he cause of any prosecution against him or which results or is likely to result in the incrimination of hat person qua any offence	 is violative of the	 fundamental right guaranteed under el. of article 20 of the Constitution of India According to his argument	 if an accused person makes any statement or any discovery	 there 25 is not only a rebuttable presumption that he had been compelled to do so	 but that it should be taken as a conclusive proof of that inferential fact. Any kind of inducement	 according to him	 is also included in the expression 'compulsion ' by the police or elsewhere. The test	 according to him	 is not the volition of the accused but the incriminatory nature of the statement or communi cation. Hence	 any statement made to a police officer	 while in police custody	 brings the same within the prohibitory ambit of the clause of the Constitution. On the face of them	 the propositions propounded by Mr. Varma are much too broadly and widely stated to be accepted. The third view	 which may be characterised as an intermediate view	 was advocated by the learned Attorney General	 appearing for the Union. According to him	 a person seeking protection under the clause must satisfy %II the four constituent elements contained in cl. (3) of article 20	 namely	 (1) he must be an accused person; (2) be must have been compelled; (3) the compulsion must be to be a witness; and (4) against himself. Compulsion	 according to him	 means coercion or constraint and does not include mere asking by the police to do a certain thing or the direction by a court to give a thumb impression or specimen writing. In other words	 compulsion has to be equated to what has been sometimes characterised as " 'third degree" methods to extort confessional statements. "To be a witness" is an expression which must be understood in consonance with the existing law of evidence and criminal	 procedure	 e.g. ss	 27 and 73 of the Evidence Act and sections 94 and 96 of the Code of Criminal Procedure. Though	 according to English Law	 the expression is confined to oral testimony	 he was prepare to go to the length of conceding that any statement	 whether oral or in writing by an accused person	 transmitting his knowledge disclosing relevant 26 facts of which he was aware	 would amount to bring a witness ' against himself. But mere production of some material evidence	 by itself	 could not come within the ambit of the expression to be a witness '	 The several questions for decision arising out of this batch of cases have to be answered with reference to the provisions of cl. (3) of article 20 of the Constitution which is in these terms : "No person accused of any offence shall be compelled to be a witness against himself" These provisions came up for consideration by the Full Court in the case of M. P. Sharma V. Satish Chandra. (1) Though the question directly arising for decision in that case was whether a search and seizure of documents under the provisions of sections 94 and 96 of the Code of Criminal Procedure came within the ambit of the prohibition of cl. (3) of article 20 of the Constitution	 this Court covered a much wider field	 Besides laying down that the search and seizure complained of in that case were not within the prohibition	 this Court examined the origin and scope of the doctrine of protection against self incrimination with reference to English Law and the Constitution of the United States of America	 with particular reference to the Fourth and 'Fifth Amendments. On an examination of the case law in England and America and the standard text books on Evidence	 like Phipson and Wigmore	 and other authorities	 this Court observed as follows : "Broadly stated the guarantee in Art.20(3) is against "testimonial compulsion". It is suggested that this is confined to the oral evidence of a person standing his trial for an offence when called to the witness stand	 We can see no reason to confine the content of the constitutional guarantee to this barely literal import. So to limit it would (1) ; 27 be to rob the guarantee of its substantial purpose and to miss the substance for the sound as stated in certain American decisions. The phrase used in article 20(3) is "to be a witness". A person can	 "be a witness" not merely by giving oral evidence but also by producing documents or making intelligible gestures as in the case of a dumb witness (see section 119 of the Evidence Act) or the like. "To be a witness" is nothing more than "to furnish evidence"	 and such evidence can be furnished through lips or by production of a thing or of a document or in other modes. So far as production of documents is concerned	 no doubt	 section 139 of the Evidence Act says that a person producing a document on summons is not	 a	 witness	 But that section is meant to regulate the right of cross examination. It is not a guide to the connotation of the word "witness"	 which must be ' understood in its natural sense	 i.e.	 as referring to a person who furnishes evidence. Indeed	 every positive volitional act which furnishes evidence is testimony	 and testi monial compulsion connotes coercion which procures the positive volitional evidentiary acts of the person	 as opposed to the negative attitude of silence or submission on his part. Nor is there any reason to think that the ' protection in respect of the evidence so: procured is confined to what transpires at the trial in the court room. The phrase used in article 20(3) is "to be a witness" and not to " 'appear as a witness" : It follows that the protection afforded to an accused in so far as it is related to the phrase "to be a witness" is not merely in respect of testimonial com pulsion in the court room but may well extend to compelled testimony previously obtained from him. It is available therefore '	 to a person against whom a formal accusation 28 relating to the commission of an	 offence has been levelled which in the normal course may result in prosecution. Whether :it is avail able to other persons in other situations does not call for decision in this case." This Court did not accept the contention at the guarantee against testimonial compulsion to be confined to oral testimony at the witness stand when standing trial for an of Fence. The guarantee was	 thus	held to include not only oral testimony given in court or out of court	 but also to statements in writing which incriminated the maker when figuring as an accused person. After having heard elaborate arguments for and against the views thus expressed by this Court after full deliberation	 we do not find any good reasons for departing from those views. But the Court went on to observe that " 'to be a witness" means "to furnish evidence" and includes not only oral testimony or statements in writing of the accused but also production of a thing or of evidence by other modes. It may be that this Court did not intend to lay down certainly it was not under discussion of the Court as a point directly arising for decision that calling upon a person accused of an offence to give his thumb impression	 his impression of palm or fingers or of sample handwriting or signature comes within the ambit of "	to be a witness" which has been equated to "to furnish evidence". Whether or not this Court intended to lay down the rule of law in those wide terms has been the subject matter of decisions	 in the different High Courts in this country. Those decisions are	 by no means	 uniform ; and conflicting views have been expressed even in the same High Court on different occasions. It will serve no useful purpose to examine those decisions in detail. It is enough to point out that the most recent decision	 to which our attention was called	 is of a Full Bench of the Kerala High Court in the case of State of Kerala 29 vs K.K. Sankaran Nair(1). In that case	 Ansari C. J.	 who delivered the opinion of the Court	 has made reference to and examined in detail the pronouncements of the different High Courts. Ultimately he came to the conclusion that the decision of this Court in Sharma 's Case (2) also covered the case of a specimen handwriting given by an accused person	 under compulsion. "To be a witness" may be equivalent to "furnishing evidence" in the sense of making oral or written statements	 but not in the larger sense of the expression so as to include giving of thumb impression or impression of palm or foot or fingers or specimen writing or exposing a part of the body by an accused person for purpose of identification. "Furnishing evidence" in the latter sense could not have been within the contemplation of the Constitution makers for the simple reason that though they may have intended to protect an accused person from the hazards of self incrimination	 in the light of the English Law on the subject they could not have intended to put obstacles in the way of efficient and effective investigation into crime and of bringing criminals to justice. The taking of impressions or parts of the body of an accused person very often becomes necessary to help the investigation of a crime. It is as much necessary to protect an accused person against being compelled to incriminate himself	 as to arm the agents of law and the law courts with legitimate powers to bring offenders to justice. Further more it must be assumed that the Constitution makers were aware of the existing law	 for example	 s.73 of the Evidence Act or sections 5 and 6 of the Identification of prisoners Act (XXXIII of 1920).Section 5 authorises a Magistrate to direct any person to allow his measurements or photographs to be (1)A.I.R.1960 Kerala 392 (2)[1954] S.C.R.1077. 30 taken	 if he is satisfied that it is expedient for the purposes of any investigation or proceeding under the Code of Criminal Procedure to do so Measurements ' include finger impressions and foot print impressions. If any such person who is directed by a Magistrate	 under section 5 of the Act	 to allow his measurements or photographs to be taken resists or refuses to allow the taking of the measurements or photographs	 it has been declared lawful by section 6 to use all necessary means to secure the taking of the required measurements or photographs. Similarly	 s.73 of the Evidence Act authorises the Court to permit the taking of finger impression or a specimen handwriting or signature of a person present in Court	 if necessary for the purpose of comparison. The matter maybe looked at from another point of view. The giving of finger impression or of specimen signature or of handwriting	 strictly speaking	 is not "	to be a witness". "To be a witness" means imparting knowledge in respect of relevant fact	 by means of oral statements or statements in writing	 by a person who has personal knowledge of the facts to be communicated to a court or to a person holding an enquiry or investigation. A person is said to be a witness	 to a certain state of facts which has to be determined by a court or authority authorised to come to a decision	 by testifying to what he has seen	 or something he has heard which is capable of being beard and is not hit by the rule excluding hearsay or giving his opinion	 as an expert	 in respect of matters in controversy. Evidence has been classified by text writers into three categories	 namely	 (1) oral testimony; (2) evidence furnished by documents; and (3) material evidence. We have already indicated that we are in agreement with the Full Court decision in Sharma 's case (1) that the prohibition in cl.(3) of Art.20 covers not only oral testimony given by a person accused of an offence but also (1) ; 31 his written statements which may have a bearing on the controversy with reference to the charge against him. The accused may have documentary evidence in his possession which may throw some light on the controversy. If it is a document	 which is not his statement conveying his personal knowledge relating to the charge against him	 he may be called upon by the ' Court to produce that document in accordance. with the provisions of s.139 of the Evidence Act	 which	 in terms	 provides that a person may be summoned to produce a document in his possession Cur power and that he does not become a witness by the mere fact that he has produced it; and therefore	 lie cannot be cross examined. Of course	 he can be cross examined if he is called as a witness who has made statements conveying his personal knowledge by reference to the contents of the document or if he his given his statements in Court otherwise than by reference to the contents of the documents. In our opinion	 therefore	 the observations of this Court in Sharma 's case(	) that s.139 of the Evidence Act has no bearing on the connotation of the word 'witness ' is not entirely well founded in law. It is well established that cl.(3) of Art.20 is directed against self incrimination by an accused person. Self incrimination must mean conveying information based upon the personal knowledge of the person giving the information and cannot include merely the mechanical process of producing documents in court which may throw a light on any of the points in controversy	 but which do not contain any statement of the accused based on his personal knowledge. For example	 the accused person may be in possession of a document which is in his writing or which contains his signature or his thumb impression. The production of such a document	 with a view to comparison of the writing or the signature or the impression	 is not the statement of (1) ; 32 an accused person	 which can be said to be of the nature of a personal testimony. When an accused person is called upon by the Court or any other authority holding an investigation to give his finger impression or signature or a specimen of his handwriting	 he is not giving any testimony of the nature of a 'personal testimony '. The giving of a "personal testimony ' must depend upon his volition. He can make any kind of statement or may refuse to make any statement. But his finger impressions or his handwriting	 in spite of efforts at concealing the true nature of it by dissimulation cannot	 change their intrinsic character. Thus	 the giving of finger impressions or of specimen writing or of signatures by an accused person	 though it may amount to furnishing evidence in the larger sense	 is not included within the expression to be a witness '. In order that a testimony by an accused person may be said to have been self incriminatory	 the compulsion of which comes within the prohibition	 of the constitutional provision	 it must be of such a ' character	that byitselfit should have the tendency of incriminating the accused	 if riot also of actually doing so. In other words	it should be a statement which makes the case against the accused person atleast probable	 considered by itself. A specimen handwriting or signature or finger impressions by themselves are no testimony at all being wholly innocuous because they are unchangeable except in rare cases where the ridges of the fingers or the style of writing have been tampered with. They are only materials for comparison in order to lend assurance to the Court that its inference based on other pieces of evidence is reliable. They are neither oral nor documentary evidence but belong to the third category of material evidence which is outside the limit of 'testimony '. Similarly	during the investigation of a crime 33 by the police	 if an accused person were to point out the place where the corpus delicti was lying concealed and in pursuance of such an information being given by an accused person	 discovery is made within the meaning of section 47 of the Evidence Act	 such information and the discovery made as a result of the information may be proved in evidence even though it may tend to incriminate the person giving the information	 while in police custody. Unless it is held that the provisions of section 27 of the Evidence Act	 in so far as they make it admissible evidence which has the tendency to incriminate the giver of the information	 are unconstitutional as coming within the prohibition of el. (3) of article 20	 such information would amount to furnishing evidence. This Court in Sharma 's case (1) was not concerned with pronouncing upon the constitutionality of the provisions of section 27 of the Evidence Act. It could not	 therefore	 be said to have laid it down that such evidence could not be adduced by the prosecution at the trial of the giver of the information for an alleged crime. The question whether section 27 of the Evidence Act was unconstitutional because it offended article 14 of the Constitution was considered by this court in the	 case of State of U. P. vs Deomen Upadhyaya(2). It was held by this Court that section 27 of the Evidence Act did not offend article 14 of the Constitution and was	 therefore	 intra vires. But the question whether it was unconstitutional because it contravened the provisions of el. (3) of article 20 was not considered in that case. That question may	 therefore be treated as an open one. The question has been raised in one of the cases before us and has	 therefore	 to be decided. The information given by an accused person to		 a police. officer leading to the discovery of a fact which may or may not prove incriminatory has been made admissible in evidence by that Section. If it is not incriminatory of the person giving the (1) ; (2) [1961] 1 S.C.R.14. 34 information	 the question does not arise. It can arise only when it is of an incriminatory character so far as the giver of the information is concerned. If the self incriminatory information has been given by an accused person without any threat	 that will be admissible in evidence and that will not be hit by the provisions of el. (3) of article 20 of the Constitution for the reason that there has been no compulsion. It must	 therefore	 be held that the provisions of section 27 of the Evidence Act are not within the prohibition aforesaid	 unless compulsion has been used in obtaining the information. In this connection the question was raised before us that in order to bring the case within the prohibition of cl. (3) of article 20	 it is not necessary that the statement should have been made by the accused person at a time when he fulfilled that character ; it is enough that he should have been an accused person at the time when the statement was sought to be proved in Court	 even though he may not have been an accused person at the time he had made that statement. The correctness of the decision of the Constitution Bench of this Court in the case of Mohamed Dastagir vs The State of Madras (1) was questioned because it was said that it ran counter to the observations of the Full Court in Sharma 's Case. (2) In the Full Court decision of this Court this question did not directly arise ; nor was it decided. On the other hand	 this Court	 in Sharma 's case(2)	 held that the protection under article 20 (3) of the Constitution is available to a person against whom a formal accusation had been levelled	 inasmuch as a First Information Report had been lodged against him. Sharma 's case (2)	 therefore	 'did not decide anything to the contrary of what this Court said in Mohamed Dastagir vs The State of Madras(	). (1) ; (2) ; 35 The latter decision in our opinion lays down the law correctly. In order to bring the evidence within the inhibitions of cl. (3) of article 20 it must be shown not only that the person making the statement was an accused at the time	 he made it and that it had a material bearing on the criminality of the maker of the statement	 but also that be was compelled to make that statement. "Compulsion ' in the context	 must mean what in law is called 'duress '. In the Dictionary of English Law by Earl Jowitt	 'duress ' is explained as follows. : " Duress is where a man is compelled to do an act by injury	 beating or unlawful imprisonment (sometimes called duress in strict sense) or by the threat of being killed	 suffering some grievous bodily harm	 or being unlawfully imprisoned (sometimes called menace	 or duress per minas). Duress also includes threatening	 beating or imprisonment of the wife	 parent or child of a person. " The compulsion in this sense is a physical objective act and not the state of mind of the person making the statement	 except where the mind has been so conditioned by some extraneous process as to render the making of the statement involuntary and	 therefore	 extorted. Hence	 the mere asking by a police officer investigating a crime against a certain individual to do a certain thing is not compulsion within the meaning of article 20 (3). Hence	 the mere fact that the accused person	 when he made the statement in question was in police custody would not	 by itself	 be the foundation for an inference of law that the accused was compelled to make the statement. Of course	 it is open to an accused person to show that while he was in police custody at the relevant time	 he was subjected to treatment which	 in the circumstances of the case	 36 would lend itself to the inference that corapulsion was	 in fact	 exercised. In other words	 it will be a question of fact in each case to ' determined by the Court on weighing the facts and circumstances disclosed in the evidence before it '. In view of these considerations	 we have come to the following conclusions : (1) An accused person cannot be said to have been compelled to be a witness against himself simply because he made a statement while in police custody	 without anything more. ' In other words	 the mere fact of being in police custody at the time when the statement in question was 'made would not.	 by itself	 as a proposition of law	 lend itself to the inference that the accused was compelled to make the statement	 though that fact	 in conjunction with other circumstances disclosed in evidence in a particular case	 would be a relevant consideration in an enquiry whether or not the accused person had been compelled to make the impugned statement. (2) The mere questioning of an accused person by a police officer	 resulting in a voluntary statement	 which may ultimately turn out to be incriminatory	 is not compulsion '. (3) To be a witness ' is not equivalent to garnishing evidence ' in its widest significance ; that is to say	 as including not merely making of oral or written statements but also production of documents or giving materials which may be relevant at a trial to determine the guilt or innocence of the accused. (4) Giving thumb impressions or impressions of foot or palm or fingers or specimen writings or showing parts of the body by way of identification were not included in the expression to be a witness 37 (5) 'To be a witness ' means imparting knowledge in respect of relevant facts by an oral statement or a statement in writing	 made or given in Court or otherwise. (6) 'To be a witness ' in its ordinary grammatical sense means giving oral testimony in Court. Case law has gone beyond this strict literal interpretation of the expression which may now bear a wider meaning	 namely	 bearing testimony in Court or out of Court by a person accused of an offence	 orally or in writing. (7) To bring the statement in question within the prohibition of article 20(3)	 the person accused must have stood in the character of an accused person At the time he made the statement. It is not enough that he should become an accused	 any time after the statement has been made. The appeals will now be listed for hearing on merits in accordance with the above principles. The Judgment of section K. Das	 Sarkar and Das Gupta	 JJ.was delivered by DAS GUPTA	 J. Is a person compelled "to be a witness" against himself within the meaning of Art.20(3) of the Constitution when he is compelled to give his specimen handwriting or signature	 or impressions of his fingers	 palm or foot to the investing officer? Is he compelled "to be a witness" against himself within the meaning of the same constitutional provisions when he is compelled to give his specimen handwriting and signature for the purpose of comparison under the provisions of section 73 of the Indian Evidence Act? These Are the main questions canvassed before us and they have both been answered in the negative in the judgment just pronounced by my Lord the Chief Justice. We agree with these answers; but as we have reached the same conclusion	 by a 38 somewhat different approach	 and for different reasons	 these have to be briefly indicated. The question as regards the meaning to be attached to the words "to be a witness" as used in Art.20(3) of the Constitution ' came up for consideration in M.P. Sharma 's Case (1). It was heard by all the eight Judges who constituted the Court at the time	 and they came to a unanimous decision. The Court in that case had to decide whether search and seizure of documents under ss.94 and 96 of the Code of Criminal Procedure is a compelled production of the same so as to infringe the provisions of Art.20(3) of the Constitution. After pointing out that the guarantee in Art.20(3) was against	 "testimonial compulsion"	 Jagannadhadas J. speaking for the Court said "The phrase used in Art.20(3) is "to be a witness". A person can "be a witness" not merely by giving oral evidence but also by producing documents or making intelligible gestures as in the case of a dumb witness (see section 119 of the Evidence Act) or the like. "To be a witness" is nothing more than " 'to furnish evidence" and such evidence can be furnished through the lips or by production of a thing or of a document or in other modes. " He next observed that s.139 of the Evidence Act which says that a person producing a document on summons is not a witness	 is really meant to regulate the right of cross examination and cannot be "la guide to the connotation of the word "witness in Art.20(3)	 which must be understood in its natural sense	 i.e.	 as. referring to a person who furnishes evidence"	 and then proceeded : "Indeed	 every positive volitional act which furnishes evidence is testimony (1) ; 39 and testimonial compulsion connotes coercion which procures the positive volitional evidentiary acts of the person	 as opposed to the negative attitude of silence or submission on his part". It was further stated that there was no reason to think that the protection in respect of the evidence so procured was confined to what transpired at the trial in the court room. If the learned Judges had hoped that by their exhaustive judgment they would end all disputes about the limits of the protection granted by article 20 (3)	 these hopes were soon	 shattered. Questions were before long raised before the different High Courts	 as to whether on the interpretation of the words "to be a witnes" given by this Court in Sharma 's Case	 compelling an accused person to give his finger prints or impressions of palm or foot or a specimen handwriting in the course of investigation	 amounted to an infringement of article 20(3). The conclusions reached by the different High Courts	 and in one case at least	 by two Benches of the same High Court were different. That is why it has become necessary to examine the question again	 and see how far	 if at all. the interpretation given in Sharma 's Case(1) requires modification. The complaint against the interpretation given in Sharma 's Case(1) is that it does not solve the problem as to what the words "to be a witness mean; but merely postpones the difficulty	 of solving it by substituting the words "to furnish evidence" for the words	 "to be a witness". It throws no light. it is said	 on what is "furnishing evidence"	 and unless that is clear	 little is gained by saying that "to be a witness" is to "furnish evidence". Rival interpretations were suggested before us which it was claimed on behalf of the protagonists will solve the problem once for all. (1) ; 40 One of the propositions put forward was that "to be a witness" as used in article 20(3) cannot refer to anything said or done at the stage of investigation of an offence. We agree with our learned brethren that this is an unduly narrow construction. As was pointed out in Sharma 's Case(1) the phrase used in article 20(3) is "to be a witness" and not "to appear as a witness". That by itself justifies the conclusion "that the protection afforded to an accused in so far as it is related to the phrase "to be a witness" is not merely in respect of testimonial compulsion in the court room but may well extend to compelled testimony previously obtained from him". If the protection was intended to be confined to being a witness in Court then really it would have been an idle protection. It would be completely defeated by compelling a person to give all the evidence outside court and then	 having what he was so compelled to do	 proved in court through other witnesses. An interpretation which so completely defeats the constitutional guarantee cannot	 of course	 be correct. The contention that the protection afforded by article 20(3) is limited to the stage of trial must therefore be rejected. That brings us to the suggestion that the expression "to be a witness" must be limited to a statement whether oral or in writing by an accused person imparting knowledge of relevant facts; but that mere production of some material evidence	 whether docum entary or otherwise would not come within the ambit of this expression. This suggestion has found favour with the majority of the Bench; we think however that this. is an unduly narrow interpretation. We have to remind ourselves that while on the one hand we 'should bear in mind that the Constitution makers could not have intended to stifle legitimate modes of investigation we have to remember further that quite clearly they thought that certain things should not be (1) ; 41 allowed to be clone	 during the investigation	 or trial	 however helpful they might seem to be to the unfolding of truth and an unnecessary apprehension of disaster to	 the police system A and the administration of justice	 should not deter us from giving the words their proper meaning. appears to us that to limit the meaning of the words "to be a witness" in article 20(3) in the manner suggested would result in allowing compulsion to be used in procuring the production from the accused of a large number of documents	 which are of evidentiary value	 sometimes even more so than any oral statement of a witness might be. Suppose	 for example	 an accused person has in his possession	 a letter written to him by an alleged co conspirator in reference to their common intention in connection with the conspiracy for committing a particular offence. Under section 10 of the Evidence Act this document is the relevant fact as against the accused himself for the purpose of proving the existence of the conspiracy and also for the purpose of showing that any such person was a party to it. By producing this	 the accused will not be imparting	 any personal knowledge of facts; yet it would certainly be giving evidence of a relevant fact. Again	 the possession by an accused of the plan of a house where burglary has taken place would be a relevant fact under s.8 of the Evidence Act as showing preparation for committing theft. By producing this plan is he not giving evidence against himself ? To a person not overburdened with technical learning	 the giving of evidence	 would appear to be the real function of a witness. Indeed English literature is replete with instances of the use of the word "witness" as meaning " 'evidence." To give one example ; Shakespeare 's Horatio speaking to Hamlet says: 42 "Season your admiration for a while with an attent ear	 till I may deliver	 Upon the witness of these gentlemen	 This marvel to you" (Hamlet	 Act I	 Scene	 III) There can be no doubt that to the ordinary user of English words	 the word 		witness" is always associated with evidence	 so that to say that to be a witness is to furnish evidence is really to keep to the natural meaning of the words. But	 what is the purpose of evidence ? Section 3 of the Indian Evidence Act defines evidence thus "Evidence means and includes (1) all statements which the Court permits or requires to be made before it by witnesses	 in relation to matters of fact under inquiry; such statements are called oral evidence; (2) all documents produced for the inspection of the Court; such documents are called documentary evidence. " Section 5 states that evidence may be given in any	 suit or proceeding of the existence or non existence of every fact in issue and of such other facts as are "hereinafter declared to be relevant and of no others." Then follow several sections laying down what are relevant facts. It is clear from the scheme of the various provisions	 dealing with the matter that the governing idea is that to be evidence	 the oral statement or a statement contained in a document	 shall have a tendency to prove a fact whether it be a fact in issue or a relevant fact which is sought to be proved. Though this definition of evidence is in respect of proceedings in Court it will be proper	 once we have come to the conclusion	 that the protection of article 20(3) is available even at the stage of investigation	 to hold that at that 43 stage also the purpose of having a witness is to obtain evidence and the purpose of evidence is to prove a fact. The illustrations we have given above show clearly that it is not only by imparting of his knowledge that an accused person assists the proving of a fact; he can do so even by other means. 	 such as the production of documents which though not containing his own knowledge would have a tendency to make probable the existence of a fact in issue or a relevant fact. Much has been written and discussed in England and America as regards the historical origin and development of the rules against '. 'testimonial compulsion". These matters of history	 however	 interesting they be	 need not detain us and we must also resist the temptation of referring to the numerous cases especially in America where the concept of " 'testimonial compulsion" has been analysed. It is sufficient to remember that long before our Constitution came to be framed the wisdom of the policy underlying these rules had been well recognised. Not that there was no view to the contrary; but for long it has been generally agreed among those who have devoted serious thought to these problems that few things could be more harmful to the detection of crime or conviction of the real culprit	 few things more likely to hamper the disclosure of truth than to ' allow investigators or prosecutors to slide down the easy path of producing by compulsion	 evidence	 whether oral or documentary	 from an accused person. It has been felt that the existence of such an easy way would tend to dissuade persons in charge of investigation or prosecution from conducting diligent search for reliable independent evidence and from sifting of available materials with the care necessary ascertainment of truth. If it is permissible in law to obtain evidence from the 44 accused person by compulsion	 why tread the bard path of laborious investigation and prolonged examination of other men	 materials and documents? It has been well said that an abolition of this privilege would be an incentive for those in charge of enforcement of law "to sit comfortably in the shade rubbing red pepper into a poor devil 's eyes rather than to go about in the sun hunt ' up evidence". (Stephen.	 History of Criminal Law	 p. 442). 	 No less serious is the danger that some accused persons at least	 may be induced to furnish evidence against themselves which is totally false out of sheer despair and an anxiety to avoid an unpleasant present. Of all these dangers the Constitution makers were clearly well aware and it was to avoid them that article 20 (3) was put in the Constitution	 It is obvious however that these dangers remain the same whether the evidence which the accused is compelled to furnish is in the form of statements	 oral or written about his own knowledge or in the shape of documents or things	 which though not trans mitting knowledge of the accused person directly helps the Court to come to a conclusion against him. If production of such documents	 or things is giving evidence	 then the person producing it is being a witness	 on what principle or reason can it be said that	 this does not amount to ' being a witness" within the meaning of article 20 (3) ? We find none. We can therefore find no justification for thinking that "	to be a witness" in article 20 (3) means to. impart personal knowledge and find no reason for departing from what this Court said in Sharma 's Case(1) that "to be a witness" is nothing more than "to furnish evidence"	 and such evidence be furnished through lips or by production of a thing or of a document or in other modes. The question then is :. Is an accused person furnishing evidence when he. is giving his specimen (1) ; 45 handwriting or impressions of his fingers	 or palm or foot ? It appears to us that he is : For	 these are relevent. facts	 within the meaning of section 9 and a. 11 of the Evidence Act. Just as an accused person is furnishing evidence and by doing so	 is being a witness	 when he makes a statement that he did something	 or saw something	 so also he is giving evidence and so is being a "witness"	 when he produces a letter the contents of which are relevant under s.10.	 or is	 producing the plan of a house where a burglary has been committed or is giving his specimen handwriting or impressions of his finger	 palm or foot. It has to be noticed however that article 20 (3) does not say that an accused person shall not be compelled to be a witness. It says that such a person shall not be	 compelled to be a witness against himself. The question that arises therefore is : Is an accused person furnishing evidence against himself	 when he gives his specimen handwriting	 or impressions of his fingers	 palm or foot 9 The answer to this must	 in our opinion	 be in the negative. The matter becomes clear	 when we contrast the giving of such handwriting or impressions	 with say	 the production of a letter admissible in evidence under section 10	 or the production of the plan of a burgled house. In either of these two latter cases	 the evidence given tends by. itself to incriminate the accused person. But the evidence of specimen handwriting or the impressions of the accused person 's fingers	 palm or foot	 will incriminate him	 only if on comparison of these with certain other handwritings or certain other impressions. 	 identity between the two sets is established. By themselves	 these impressions or the handwritings do not incriminate the accused person.	 or even tend to do so. That is why it must be held that by giving these impressions or specimen handwriting	 the accused person does not furnish evidence against himself	 So when an 46 accused person is compelled to give a specimen handwriting or impressions of his finger	pahm or foot	 it may be said that he has been compelled to be a witness ; it cannot however be said that he has been compelled to be a witness against himself. This view	 it may be pointed out	 does not in any way militate against the policy underlying the rule against "testimonial compulsion" we have already discussed above. There is little risk	 if at all	 in the investigator or the prosecutor being induced to lethargy or inaction because he can get such handwriting or impressions from an accused person. For	 by themselves they are of little or of no assistance to bring home the guilt of an accused. Nor is there any chance of the accused to mislead the investigator into wrong channels by furnishing false evidence. For	 it is beyond his power to alter the ridges or other characteristics of his hand	 palm or finger or to alter the characteristics of his handwriting. We agree therefore with the conclusion reached by the majority of the Bench that there is no infringement of Art.20(3) of the Constitution by compelling an accused person to give his specimen handwriting or signature; or impressions of his fingers	 palm or foot to the investigating officer or under orders of a court for the purpose of comparison under the provisions of s.73 of the Indian Evidence Act; though we have not been able to agree with the view of our learned brethren that 	to be a witness" in Art.20(3) should be 'equated with the imparting of personal knowledge or that an accused does not become a witness when he produces some document not in his own hand writing even though it may tend to prove facts in issue or relevant facts against him. In Criminal Appeals Nos. 110 & Ill of 1958 a further question as regards the validity of s.27 of 47 the Evidence Act was raised. It was said that the receipt of information from an accused person in the custody of a police officer which can be proved under s.27 is an infringement of Art.20(3). Section 27 provides that when any fact is deposed to as discovered in consequence of Information received from a person accused of any offence	 in the custody	 of a police officer	 so much of the information	 whether it amounts to a confession or not	 as relates distinctly to the fact thereby discovered	 may be proved. It cannot be disputed that by giving such information the accused furnishes evidence and therefore is a "witness" during the investigation. Unless however he is " 'compelled" to give the information he cannot be said to be "compelled" to be a witness; and so article 20(3) is not infringed. Compulsion is not however inherent in the receipt of information from an accused person in the custody of a police officer. There may be cases where an accused in custody is compelled to give the information later on sought to be proved under s.27. There will be other cases where the accused gives the information without any compulsion. Where the accused is compelled to give information it will be an infringement of article 20(3); but there is no such infringement where he gives the information without any compulsion. Therefore	 compulsion not being inherent or implicit in the fact of the information having been received from a person in custody	 the contention that section 27 necessarily infringes Art.20(3) cannot be accepted. A question was raised in the course of the discussion as to when a person can be said to have been " 'compelled" within the meaning of Art.20(3). One view is that there must be an element of constraint or coercion in the physical sense before it can be said that an accused person has been "compelled". The other view is that in addition to cases where there has been such constraint or coercion an accused should be said to have been 48 "	compelled" to be a witness whenever there has been inducement or promise which persuaded the accused to be a witness	 even though there has been no such coercion or constraints In Criminal Appeals Nos. 110 and 111 the information proved under s.27 of the Evidence Act was that Pokhar Singh had buried certain fire arms in village Badesra under Toori and these were recovered when he pointed these out to the investigating police officer. This information was proved under s.27. But it does not appear to have been suggested that the accused was made to give this information by inducement or threat or promise. On the facts therefore there is no question of the information having been received by compulsion. The question whether any inducement or promise which leads an accused person to give information amounts to compulsion or not	 does not therefor fall to be decided. It may be pointed out that in the other appeals	 viz.	 Criminal Appeal No. 146 of ' 1958 and Criminal Appeal No. 174 of 1959	 also	 this question does not arise for consideration in view of our conclusion that in any case the accused does not become a " 'witness against himself by giving his Specimen signatures or impressions of his fingers or Palms. It appears to us to be equally unnecessary to decide another question which was mooted in the course of the hearing	 viz.	 whether the prohibition of Art.20(3) operates only after a person has been accused of an offence or even before that stage. Admittedly	 in all these cases the person on whose behalf the protection under article 20(3) is claimed gave the specimen signatures or impressions of fingers or palms after he had been actually accused of an offence. We think it right therefore not to express any opinion on any of these questions.

Section 73 of the Indian Evidence Act empowers the court to	 obtain specimen writing or signature and finger impressions of an accused person for purposes of Comparison. 11 Sections 5 and 6 of the Identification of Prisoners Act empower a Magistrate to obtain the photograph or measurements of an accused person. Section 27 of the Indian Evidence Act permits the reception in evidence of statements made by an accused person in police custody which lead to a discovery. It was contended by the accused persons that the obtaining of evidence in any of these ways amounted to compelling the person accused of an offence "to be a witness against himself" in contravention of article 20(3) of the Constitution. It was further contended that it 'was implicitly the fact that the accused was in police custody when ' the specimen signatures or thumb impressions etc. were obtained that compulsion was used. Held	 that there was no infringement of article 20(3) of the Constitution in compelling an accused person to give his specimen handwriting or signature	 or impressions of his thumb	 fingers	 palm or foot to the investigating officer or under orders of a court for the purposes of comparison. Held	 further	 that the provisions of section 27 of the Indian Evidence Act did not offend article 20(3) unless compulsion was used in obtaining the information. Compulsion was not inherent in the receipt of information from an accused person in the custody of a lice officer; it will be a question of fact in each case to be determined by the court on the evidence before it whether compulsion had been used in obtaining the information. M.P. Sharma vs Satish Chandra	 ; 	 reconsidered. Per Sinha	 C.J.	 Imam	 Gajendragadkar	 Subba Rao	 Wanchoo	 Raghubar Dayal	 Rajagopala Ayyangar and Mudholkar	 jj. The correct position with respect to the guarantee under article 20(3) is that (i) the guarantee includes not only oral testimony given in court or out of court but also statements in writing which incriminate the maker when figuring as an accused person; (ii) the words "to be a witness" in article 20(3) do not include the giving of thumb impression or impression of palm	 foot or fingers or specimen writing or exposing a part of the body by an accused person for identification; (iii) "self incrimination" means conveying information based upon the personal knowledge of the given and does not include the mere mechanical process of 12 producing documents in court which do not contain ' any statement of the accused based on his personal knowledge; (iv) in order to come within the prohibition of article 20(3) the testimony must be of such a character that by itself it should have the	 tendency to incriminate the accused; and (V) to avail of the protection of article 20(3) the person must have stood in the character of an accused person at the time he made the statement. Per section K. Das	 Sarkar and Das Gupta	 JJ. (i) The protection afforded by article 20(3) is not merely in respect of testimonial compulsion in the court room but extends also to compelled testimony previously obtained from the accused. (ii) The words "to be a witness" in article 20(3) mean		 to furnish evidence" and cannot be confined to imparting personal knowledge; such evidence can be furnished through lips or by production of a thing or of a document or in other modes. (iii) An accused person furnishes evidence when he gives his specimen handwriting or impressions of his fingers or palm or foot. (iv) But in doing so the accused does not furnish evidence against himself as by themselves these specimens or impressions do not incriminate or even tend to incriminate the accused and he cannot be said to be compelled "to be a witness against himself " when he is compelled to give the specimen or impression.