Pete C. wrote:

Up here in canada some big cities use them at a policing level. Other
than the occasional threat of traffic enforcement what the have proven
MOST effective for if finding marijuana grow ops since the are
equipped with infrared cameras at night and the first law of
thermodynamics can often create unexplained heat signatures in places
where there shouldnt be (Why does the camera show that garage at 28C
when its only 10C outside and the house is closer to 20C.... HMMMM


They tried that in the US and the supreme court banned it.

Same happened in BC when they tried to use the IR surveys to raid grow
ops. Said it was an unwarranted invasion of the privacy.

At the time that decision came down, they thought that perhaps 1 house
in 20 or so in the lower mainland had some grow activity level in it.

Cheers
Trevor Jones