Criminal gangs are using drones to drop packages of up to 10 kilograms of drugs into prisons where the overwhelming amount of drugs is destabilising jails, a watchdog chief has warned.. Read MoreShare this ArticlePrevious ArticleVictims Of July 7 Attacks Remembered 20 Years On With Service At St PaulsNext ArticlePublic Inquiry Begins Into Horrific Southport MurdersNews Editor