Summarize the following court judgment. etition No. 254 of 1974. Petition under Article 32 of the Constitution of India. section K. Gambhir	 for the petitioner. P. K. Chatterjee and G. section Chatterjee	 for the respondent. 	 The particulars of the ground of detention refer to a single incident described thus: "That on 24 5 72 at about 10 35 hrs. you along with your associates broke BEX Wagon No. WR 75961 loaded with food grains at Mathurapur Goods sidings and decamped with 10/12 bags of wheat and rice. Your action caused disruption of supply and services". After the rule issued in this habeas coprus petition was served on the respondent	 the State of West Bengal	 the District Magistrate filed a counter affidavit in answer to the petition. Paragraph 5 of the aforesaid affidavit says that the order of detention was passed after the District Magistrate was satisfied that it was necessary to detain the petitioner with a view to preventing him from acting in a manner prejudicial to the maintenance of supplies and services essential to the community; that the District Magistrate was satisfied that if the petitioner was not detained he was likely to act in a manner described above; and that : "The nature of act	 the manner in which the same was committed	 the effect and result of said activity upon the community and the question of supply of food grains were taken by me into consideration before making the order of detention". Learned counsel appearing on behalf of the petitioner argues that the petitioner was ordered to be detained on the basis of a single	 isolated incident and that no reasonable person could possibly come to the conclusion that it was necessary to detain the petitioner in order to prevent him from acting prejudicially to the maintenance of supplies and services essential to the community. This submission	 in our opi nion	 is well founded and must be accepted. in Debu Mahato vs State of West Bengal(1)	 the Distt. Magistrate had passed an order directing that the petitioner therein be detained with a view to preventing him from acting in a manner prejudicial to the maintenance of supplies and services essential to the community. Only one ground of detention was set out	 namely	 that the petitioner and his associates were found removing three bales of empty jute bags after breaking open a. railway wagon and that when challenged by the Railway Protection Force they fled away leaving the booty behind. A Bench consisting of three learned Judges held that though it could not be laid down as &a invariable rule that in no case can a single	 solitary act form the basis for reaching the satisfaction that the detenu might repeat such acts in future	 in the circumstances of the particular case one solitary isolated act of wagon breaking committed by the petitioner could not possibly persuade any reasonable person to reach the satis faction that unless the petitioner was detained he would in all probability indulge in further acts of wagon breaking. This conclusion was not reached by the Court on the basis that what was stolen was empty jute bags. The conclusion is based on the circumstance that (1) 451 what was alleged against the petitioner was his involvement in a solitary	 isolated act of wagon breaking and secondly	 nothing was said by the District Magistrate in his counter affidavit suggesting that wagon breaking had become so rampant that in the context of the peculiar situation	 the District Magistrate arrived at the requisite satisfaction in spite of the fact that the act on which the satisfaction was founded was just one single	 solitary act of wagon breaking. No two cases can have precisely indentical facts but we are unable to see any material distinction in the facts of the case before us and the facts in Debu Mahato 's case. A single act has been attributed to the petitioner and it consists of a theft of 10 or 12 bags of wheat and rice after breaking open a wagon. The act was not accompanied by violence or by show of force and the District Magistrate has not stated in his affidavit that by reason of the peculiarity or enormity of the situation	 he formed the requisite satisfaction as regards the necessity to detain the petitioner	 even though the satisfaction was founded on an isolated incident. Mr. Chattarjee who appears on behalf of the State of West Bengal	 argues that the judgment of this Court in Debu Mahato 's case was predominantly influenced by the consideration that the District Magistrate in his counter affidavit had stated that the petitioner was "one of the notorious wagon breakers" and was engaged in systematic breaking of railway wagons. We are unable to agree. Two ground s were urged in Debu Mahato 's case for invalidating the detention order. The first 'ground was that the District Magistrate could not have possibly reached the satisfaction on the basis of a single incident that unless the petitioner was detained	 he would indulge in further acts of wagon breaking. While considering this argument	 no reference at all was made by the Court to the fact that in the counter affidavit	 the District Magistrate had referred to circumstances which were not disclosed to the detenu. Having held that the order was liable to be set aside on the ground that the satisfaction of the District Magistrate was truly no satisfaction at all	 the Court proceeded to consider the second ground of attack 	 namely	 that the order of detention was based on facts not disclosed to the petitioner. That is why the judgment on the second ground of attack begins by saying : "There was also another angle from which the validity of the order of detention was challenged on behalf of the petitioner". It is manifest from the judgment that the order of detention was held to be bad on two separate and distinct grounds and the reasons which weighed with the Court on the second aspect of the matter did not influence its decision on the first ground of attack. Counsel for the State then urged that the sufficiency of grounds of detention is not a justiciable issue and all that the Courts can consider is whether the grounds of detention are germane to the purpose for which the detention has been ordered. Learned counsel argues that if wagon breaking for the purpose of committing theft of foodstuffs bears nexus with the maintenance of supplies and services essential to the community	 the detention must be upheld at all events and the Courts have no jurisdiction to enter into the question whether any 255SuP.Cl/75 452 other conclusion was possible on the basis of facts placed before the detaining authority. It is true that Courts cannot sit in appeal over the propriety of detention orders. But the argument of the State overlooks the distinction between the Court 's jurisdiction in regard to the sufficiency of grounds necessitating the detention and its jurisdiction to examine whether a reasonable person could at all reach the conclusion that unless the person w is detained he would in all probability indulge in a similar course of conduct. We are not concerned to consider whether the District Magistrate was justified in passing the order of detention on the strength of the material available to him. So long as the grounds of detention are germane to the purpose of detention	 Courts do not weigh the evidentiary value of the data placed before the detaining authority in order to determine the sufficiency of that data as justifying the order of detention. The point of the matter is that considering the nature of the act attributed to the petitioner and its context	 and not merely the fact that the ground of detention refers to a single incident	 the satisfaction reached by the District Magistrate that the petitioner	 unless detained	 was likely to commit similar acts in the future is such as no reasonable person could possibly reach. The conclusion that the past conduct of the detenu raises an apprehension regarding his future behaviour must at least be rational. Accordingly	 we set aside the order of detention	 make the rule in this petition absolute and direct that the petitioner shall be released forthwith. P.H.P. Petition allowed.

The petitioner was detained under the Maintenance of Internal Security Act on the ground that on a particular day he along with his associates broke open a railway wagon loaded with foodgrains. The petitioner in Writ Petition filed in this Court under article 32 contended that he was detained on the basis of a single isolated incident and that no reasonable person could possibly come to the conclusion that it is necessary to detain the petitioner in order to prevent him from acting prejudicially to the Maintenance of Supplies and Services essential to the community. It was contended by the respondent that the sufficiency of grounds of detention is not a justiciable issue and all that the courts can consider is whether the grounds of detention are germane to the grounds on which the detention has been ordered. If wagon breaking for the purpose of committing theft of foodstuffs bears nexus with the maintenance of supplies and services essential to the community	 the detention must be upheld at all events and the courts have no jurisdiction to enter into the question whether any other conclusion was possible on the basis of facts placed before the detaining authority. Setting aside the detention	 HELD : Following the decision of this Court in Debu Mahato vs State of West Bengal	 	 it is true that the courts cannot sit in appeal over the propriety of a detention order. But there is a distinction between the Court 's jurisdiction in regard to the sufficiency of grounds necessitating the detention and its jurisdiction to examine whether a reasonable person could at all reach the conclusion that unless a person was detained he would in all probability indulge in a similar course of conduct. So long as the grounds of detention are germane to the purpose of detention courts do not weigh the evidentiary value of the data placed before the detaining authority. In the present case	 no reasonable person can come to the conclusion on the basis of a solitary act of wagon breaking that it is necessary to detain the petitioner. Considering the nature of the act attributed to the petitioner and its context and not merely the fact that the ground of detention refers to a single incident the satisfaction reached by the District Magistrate that the petitioner	 unless detained	 was likely to commit similar acts in the future	 is such as no reasonable person could possibly reach. The conclusion that the past conduct of the detenu raises apprehension regarding his future behaviour must at least be rational. [452A BD]