### Dangerous Drugs Ordinance 《危險藥物條例》

53B. Application for return of travel document
(1) A person who has surrendered his travel document in accordance with section 53A may at any time make written application to the Commissioner of Police or the Commissioner of Customs and Excise, as the case may be, for its return and every such application shall contain a statement of the grounds on which it is made. (Amended 40 of 1985 s. 9)
(2) Before determining an application under subsection (1), the Commissioner of Police or the Commissioner of Customs and Excise may require that any matter of fact relied on in the application shall be substantiated by statutory declaration. (Amended 40 of 1985 s. 9)
(3) Any person aggrieved by the refusal of an application under subsection (1) may, within 14 days of being informed of such refusal, appeal to a magistrate against that refusal and the magistrate may, upon considering the grounds of the application and any evidence which may be adduced in relation thereto by or on behalf of either party, order that the travel document be returned.
(4) The decision of a magistrate in relation to an appeal under this section shall be final.
(Added 60 of 1977 s. 2)

53C. Application for permission to leave Hong Kong
(1) Without prejudice to section 53B, a person on whom a notice under section 53A(1) is served may at any time make written application to the Commissioner of Police or the Commissioner of Customs and Excise, as the case may be, for permission to leave Hong Kong and every such application shall contain a statement of the grounds on which it is made.
(2) Before determining an application under subsection (1), the Commissioner of Police or the Commissioner of Customs and Excise may require that any matter of fact relied on in the application shall be substantiated by statutory declaration.
(3) Any person aggrieved by the refusal of an application under subsection (1) may, within 14 days of being informed of such refusal, appeal to a magistrate against that refusal and the magistrate may, upon considering the grounds of the application and any evidence which may be adduced in relation thereto by or on behalf of either party, order that the person be permitted to leave Hong Kong.
(4) The decision of a magistrate in relation to an appeal under this section shall be final.
(Added 10 of 2005 s. 40)

### Dangerous Drugs Ordinance 《危險藥物條例》

54. Chemical tests and handwriting
(1) Any police officer not below the rank of inspector or any member of the Customs and Excise Service not below the rank of inspector may require any person whom he reasonably suspects to be guilty of an offence under this Ordinance— (Amended 13 of 1973 s. 2)
(a) to have his finger nails pared and his hands washed in water for the purpose of analysis of such finger nails and water; or
(b) to give a specimen of his handwriting for the purpose of comparison.
(2) Any person who fails to comply with a requirement under subsection (1) shall be guilty of an offence and shall be liable on conviction to a fine at level 1. (Amended E.R. 4 of 2019)

### Dangerous Drugs Ordinance 《危險藥物條例》

54AA. Taking of urine samples
(1) In any investigation in respect of an offence committed or believed to have been committed, a urine sample may be taken from a person only if—
(a) a police officer of or above the rank of superintendent or a member of the Customs and Excise Service of or above the rank of superintendent (authorizing officer

54AB. Use and disposal of urine samples and information derived from analysis
(1) Without prejudice to subsection (4), no person shall have access to, dispose of or use a urine sample taken pursuant to section 54AA except for the purposes of forensic analysis in the course of an investigation of any offence in relation to dangerous drugs.
(2) Without prejudice to subsection (4), no person shall have access to, disclose or use any information derived from the forensic analysis of a urine sample taken pursuant to section 54AA except for the purposes of—
(a) any proceedings for an offence in relation to dangerous drugs; or
(b) making the information available to the person to whom the information relates.
(3) Any person who contravenes subsection (1) or (2) commits an offence and is liable on conviction to a fine at level 4 and to imprisonment for 6 months.
(4) Whether or not a urine sample taken pursuant to section 54AA or any information derived from the forensic analysis of the sample has been destroyed under subsection (5), no person shall use the sample or information in any proceedings for an offence in relation to dangerous drugs after—
(a) it is decided that a person from whom the sample was taken shall not be charged with any offence in relation to dangerous drugs;
(b) if the person has been charged with one or more such offences—
(i) the charge or all the charges, as the case may be, is or are withdrawn;
(ii) the person is discharged by a court before conviction of the offence or all the offences, as the case may be; or
(iii) the person is acquitted of the offence or all the offences, as the case may be, at trial or on appeal,
whichever occurs first.
(5) The Commissioner of Police or the Commissioner of Customs and Excise, as the case may be, shall take reasonable steps to ensure that—
(a) a urine sample taken pursuant to section 54AA; and
(b) all information derived from the forensic analysis of the sample,
which may be retained by him or on his behalf are destroyed as soon as practicable after—
(i) if the person from whom the sample was taken has not been charged with any offence in relation to dangerous drugs, the expiry of—
(A) subject to subparagraph (B), 12 months from the date on which the sample is taken (the relevant period