[2003] EWCA Crim 290
In a case involving a charge of conspiracy to supply heroin, the trial judge had not erred in admitting as expert evidence the evidence of a police officer with regard to the normal manner of supply of heroin, the usual price and the quantity of drugs that would constitute a supply for personal use.
CA (Crim Div) (Rose LJ, Aikens J, Royce J)
22/01/2003