Surrey Police hold their online police auctions via the site Bumblebee. A list of their items can be found below. We are adding new items all the time so keep checking back!
For the traditionalist they are also know to dispose of items seized under the proceeds of crime act via auctioneers Astons. Check with them directly to find out when their next police auction is.
Astons Auctioneers
http://www.astonsauctioneers.co.uk
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Surrey Police don't seem to have any live auctions just now.