Added Oct 16 2012
I haven't lived in Chicago too terribly long, but I recently witnessed a person, one building over, looking out the window with binoculars. At first I thought this person was looking at me, but then I realized they were looking one floor above me, and one apartment over. Although it concerned me, I doubted that it was illegal; but simply looked-down upon. This morning (Oct 16th, 2012) I noticed the same individual peering out the window with the binoculars, but they were, how should I say, disrobed(?). They then set the binoculars down and...you know where this headed, right?
So what do I do? The Peeping Tom didn't violate my privacy. The Peeping Tom didn't expose themselves to me (let alone realize that, ironically enough, they were being watched) and the only thing that I can honestly say is that I caught someone doing something which I find morally repellant.
Do I knock on the suspected victim's door and explain the situation? Do I try to get into the building that the Peeping Tom lives in, and leave a note on their door? Do I contact the police? My Alderman? I have no idea what the best approach is!! Any feedback and advice would be appreciated!!