A woman hypnotized and then robbed in few seconds!

Oh gosh, that is really freaky! You always see these warning emails telling you to forward it to female friends, relatives and colleagues saying random people might give you a piece of paper with their number on it which contains some chemical which makes you forget who or where you are for a while and when asked you can do whatever the other person tells you to do. I always check these things when I receive them and mostly they're hoaxes but this thing that happened in your neighbourhood sounds really scary! My parents are in Cal at the moment and I sincerely hope they don't fall prey to anything like this or any of my relatives or friends out there, of course, I don't want it to happen to anyone else either. Do the police have any ideas?