London cops raid 4,000 cannabis farms in five years with sites including schools, hospitals and former police station

COPS have raided 4,000 cannabis farms in five years in London alone.   The growing sites were at locations including schools, hospitals and at least one former police station.  Figures obtained through Freedom of Information requests show the borough of Enfield had most, followed by Barnet and Croydon. Posh Kensington and Chelsea had the fewest. Almost...