Police auctions tend to conjure up images of beat up cars confiscated from drug dealers and mint condition police cruisers that—for one reason or another—never saw service. The reality lies somewhere in the middle, and there are some good deals to be had so long as you're careful, and absolutely sure about what you're doing. Let this list be your insurance.
Additional government sites. There are a few additional sites that can provide tips on government auctions. Guide to Federal Auctions gives a rundown of the various agencies. It provides information about what they sell as well as the departments' websites. GSA supplies information about auction sources. Auctions can be searched by state or auction house
The goods you buy from government auctions are “as is.” Look on the “Terms and Conditions” page before bidding to understand the process. A typical auction page states, for example, that the auction site doesn’t guarantee the quality of the product in any way. Once you bid, you enter a legally binding contract, and you need to follow through with your bid.