This literally happened in a court room with me... and I walked free.

People must learn to ask the RIGHT questions. It alll reduce to this simple questionnaire:

You do not have to prove that you didn't committed any crime, but let them prove it otherwise. Crime means simple: damage, theft or kill. If they can't prove it, you are free to go. But you need to ask the right question, and not putting yourself under a "lawyer" bullshit...