What can you record with a home security camera?

I wanted to do this last summer, when we had a drug dealer doing deals right outside my kitchen window. Luckily he is gone now. But I would still like to place security camera around my apartment to record any other illegal acts, such as vandalism. My main concern is invading the privacy of someone that is not... show more I wanted to do this last summer, when we had a drug dealer doing deals right outside my kitchen window. Luckily he is gone now. But I would still like to place security camera around my apartment to record any other illegal acts, such as vandalism. My main concern is invading the privacy of someone that is not doing anything wrong. My landlord already has the main entrances to our building covered, but I would like to watch out for the common areas, such as wehre the drug deals took place.
Update: I live in Upstate NY.
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