Misuse of Drugs Act 1973 · 2020 Revised Edition · Part 3 · Evidence, Enforcement and Punishment
31A. Hair tests
Feedback & supportLast amended by an amending law of 2025. 4 amendments in all.
Any officer of the Bureau, immigration officer or police officer not below the rank of sergeant may, if he or she reasonably suspects any person to have committed an offence under section 8(b) or 11I(1)(b), require that person to provide specimens of the person’s hair for a hair test to be conducted under this section.
officer of the Bureau
“officer of the Bureau” means the Director or any person appointed under section 3 as a Deputy Director, a Divisional Director or an officer of the Central Narcotics Bureau;
The Director may, for the purpose of ensuring that a relevant person is no longer a drug addict, after the relevant time, order the relevant person —
Director
“Director” means the Director of the Central Narcotics Bureau appointed under section 3(1);
to present himself or herself to any officer of the Bureau, immigration officer or police officer not below the rank of sergeant; and
to provide specimens of the relevant person’s hair for a hair test to be conducted under this section as required by such officer.
A person who, without reasonable excuse, fails to provide specimens of his or her hair of such type and quantity as may be required by any of the officers referred to in subsection (1) or (1A) shall be guilty of an offence.
A person who, without reasonable excuse, fails to comply with an order under subsection (1A) shall be guilty of an offence.
All specimens of hair provided under this section must be marked and sealed for hair testing in accordance with the prescribed procedure.
A certificate stating the result of a hair test must be signed by an analyst employed by the Health Sciences Authority or any other person that the Minister appoints for such purpose.
An appointment under subsection (4) must be published in the Gazette.
The certificate stating the result of a hair test may be signed by an analyst or person appointed under subsection (4) even though he or she did not personally conduct the test to analyse the specimens of hair as long as the test was conducted by another person acting under his or her direction.