Policeauctions.com is run by a private company and is not affiliated with the government. It provides information and links to government-run auctions, but the site itself is part of the wholesale liquidation auction market. Items are sold as is and sometimes there are fees. You have to register to bid and get information, but it doesn’t cost anything to join the site.
I wasn't aware that the TSA sold all of the stuff it confiscated! That's cheap goods right there! My mom works for a cruise line, and they don't confiscate stuff, but people do tend to forget all kinds of things they bring on the ship, so every once in a while the company has a big flea market available to employees. I find it funny when my mom comes home with watches and bracelets she wouldn't have otherwise bought.