I often wish security cameras in the US were more powerful. They're terrible at identifying useful information from a crime in progress: license plates, face and clothing... the important bits are always blurry.
A quick test is to have a friend put on a hoodie and creep around your house at different times of day. How many clear shots of their face do you get? Or are you just capturing the top of their head? In my experience if you don't have a face or a license plate the police aren't interested.
In both cases, the camera footage was utterly useless.