26 Nov 2019
HKSAR v. CHEUNG MAN KIT AND OTHERS
- Citation
- [2019] HKCFI 2860
- Court
- Court of First Instance
- Case number
- HCCC236/2018
The court held that expert evidence by a police officer on the workings of illicit retail drug operations and the specialised jargon used may be admissible if the witness demonstrates sufficient qualifications, independence and a transparent factual and methodological basis, and if the evidence is necessary to assist the jury and its probative value outweighs its prejudicial effect; the trial judge must tightly delineate scope and impose limiting directions to prevent overreach or substitution of jury fact‑finding.