Again, I will say it one more time but this is the last about the subject. As said before on several threads, I understand that in America, Canada etc police don't use choppers much to detect indoor grows without prior information. The UK is completely different. In the UK,our higher population density, preference for 2 storey houses and lack of space makes loft grows etc popular, use of a chopper to survey heat signatures of large percentages of the population easy with a short flight and more viable than in other countries. A large percentage of our busts ARE due to helicopters, and I have personally lost some growing friends to it that lived less than 2 miles away from me. Even more recently the cops actually busted one of their own to discover that her newly built house simply had poor loft insulation.