INFRARED PEEKABOO

Whenever police want to learn what's going on inside someone's home, they
should have to get a search warrant; even when they don't plan to enter the
house, but just want to look inside with an infrared camera.

That's the principle which is at stake in a case the Supreme Court of
Canada is now considering, on whether a Windsor-area man's privacy was
violated by police who used an infrared camera to look for the telltale
excess heat of a marijuana grow-op.

Walter Tessling isn't the most sympathetic victim ... but the highest court
in Ontario found that police went too far ...

Currently, infrared cameras can't "see" people through walls, but the
technology is still evolving and it's not unreasonable to think it will be
a possibility in the not-too-distant future. That's why this case is
important not just for people who might be under suspicion of growing
marijuana, but for everyone who believes what they do in the privacy of
their home is nobody's business but their own. ...