can police dectet marijuana lants from helicopters by infra red deviceor is it a rumor to keep people from growing out side please send answer to my in box high land i have done time for poession do not want to do more time so answers only from people who really know thanks high land
They most certainly
can pick out cannabis from the surrounding vegetation. It's not exactly done with infra-red or FLIR, but we'll go with that. All plants
reflect light at a genus specific wavelength, and by filtering out everything except that wavelength in a video feed, MJ stands out quite distinctly. Even plants in partial shade. Chances are that they don't have that capability, but the technology is there, usually at the Fed level, and is available to local authorities. It's also quite expensive to run since they have to pay the park service for the use of their helo, so when budget cuts hit, they cut way back on that type of surveillance.
Almost every Helo you see is most probably civilian aircraft, or the Cops doing a
visual fly over. Park service Helos have FLIR in them and some have the Computer/video system as well.
A Buddy of mine worked for the Nat'l park service as a helo pilot, and he told me pretty much how they operate. The sheriffs dept has that available to them, but rarely use it here.