issue 8 99 29 april 1999 drug seizure and offender statistics united kingdom 1997 by john martin corkery main points n seizures rose in 14 per cent to 139 000 compared an increase of 6 the previous year cannabis was involved 77 number involving heroin 27 those cocaine including crack 33 16 paragraphs 11 12 weight most class a drugs seized 109 all time high 93 amounts lsd ecstasy type fell 34 67 respectively 21 24 offenders increased 19 113 almost 90 were possession cases mainly there 48 800 18 86 49 50 66 just under half