AFAIK a professional camera is just a camera with features. It has nothing to do whether it's suitable for the use of a professional, or it takes professional quality photos.
The list of features are things like: settings for shutter speed, exposure, etc all accessible by dials instead of a menu. Swappable lens. A really fast flash sync speed. Probably, be somewhat "rugged".
Oh, and expensive enough that professional photographers normally can't buy one ;)
- Install TrueCrypt - Format thumb drive as a TrueCrypt partition. Use a password that you want to give to police. - Create hidden partition inside the first partition. Use your private password.
Hidden partitions don't show in the file system, and don't reserve any disk space (they can even be accidentally overwritten if you put too many files in the "fake" partition), therefore nobody is going to ask you for your password unless they are aware of it beforehand.
Report the video as Child abuse, add the following text:
"Child grooming comprises actions deliberately undertaken with the aim of befriending and establishing an emotional connection with a child, to lower the child's inhibitions in preparation to sexually assault the child, or to exploit the child."
"So, remember, when you're trolling the internet for someone to cheat on your spouse with, chances are you're not talking to a real human being. And if you're unhappy at home, there are much more fun ways to get sore hands than typing on your keyboard."
Well, some of them require a bit of typing. Hopefully just enough that you can use one hand only.