Choor Singh & Rajah JJ

The accused was charged and tried before us on the following charge:

"That you, Ong Ah Chuan, on or about the 2nd day of June 1977 at about 12.00 noon in front of No. 270, Bukit Timah Road, Singapore, did traffic in a controlled drug specified in Class 'A' of Part I of the First Schedule to the Misuse of Drugs Act, 1973 (No. 5 of 1973) to wit, 209.84 grams of diamorphine without any authorisation under the said Act or the regulations made thereunder and you have thereby committed an offence under section 3(a) of the Misuse of Drugs Act, 1973 (No. 5 of 1973) and punishable under section 29 of the said Act."

On June 2, 1977 at about 9.15 a.m., acting on information received, Acting Senior Narcotics Officer Yeo Kiah Hee (PW6) and Assistant Narcotics Officer Ramli arrived on their motor-cycle at Block 26 Marsiling Drive, Singapore. They stationed themselves on the ground floor of Block 30 Marsiling Drive and commenced observation on the flat of the accused, No. 235-E Block 26 Marsiling Drive.

At about 9.30 a.m., Yeo (PW6) saw a motorcar No. SX 9098, driven by the accused, arriving at Block 26. The accused parked the car in a lane next to Block 26. He then got out