Bob Donlon - Albany, NY , May 31, 2007; 09:15 p.m.
I know of a local photog and video person this happened to a few years ago. Someone was having a wedding a local place that does a lot of weddings, and someone managed to get into the room where the reception was taking place and took ALL of the envelopes, not much cash, mostly checks, but still some cash.
In a very fortunate chain of events, both the photo and video, unknowingly, caught the people on their respective mediums as background material. Upon hearing the situation, the both checked their materials and found video and photo evidence of what was going on and who they were. Both handed over copies of the material so the B/G were able to recover some of the stuff, but the druggy managed to cash some of the stuff and used it on crack.
My suggestion, if the police or B/G ask for material, let them have it.