JUDGMENT

Augustine Paul J:

Chia Leong Foo ("the accused") was charged with trafficking in 218.79 grammes of heroin and monoacetylmorphines under s. 39B(1)(a) of the Dangerous Drugs Act 1952 ("the Act") and punishable under s. 39B(2) of the Act. The accused claimed trial to the charge.

The prosecution, in order to make out its case, called a total of seven witnesses. They are police photographers, Kamaruzaman Sabirin (PW1) and Zulkifli bin Rashid (PW2); Detective Sergeant Nurazlina Abdullah (PW3); Inspector Mohd Alpiyang Ali (PW4); Inspector Tansly Mering (PW5); Detective Sergeant Hassan Sulaiman (PW6) and Inspector Wan Azlan Wan Mamat (PW7). On 26 June 1998 PW4 led a party of police officers consisting of PW6, Det/Sjn Mohd Zaman Yunus, Det/Kpl Haridan Ab Hamid, Det/Kpl Jawahir Supar, L/Kpl Mastoro Mohamad, Det/L/Kpl Hariri Harun, L/Kpl Azli Abdullah and L/Kpl Jeganathan to lay an ambush at the Caltex Petrol Station ("the petrol station") at Jalan Kuching, Kuala Lumpur. They arrived at the scene at 8pm; PW5 instructed his officers to take up various positions at the petrol station. PW6 was instructed to remain in motor car bearing registration number WDR 1704 parked about 30 metres