I copy this from a different tropic.

For all who think they know auction law, the UCC says that shilling bidding is illegal. Second all auction are with reserve unless the auction is advertised as "ABSOLUTE".

That is why Matthews Auctions used the this word in most of our advertising.

So if you go to either Peotone auctions this year and they dont use the term "absolute" in their advertising then you may be bidding against the owner of the item and it is legal.

Shilling bidding is when the auctioneer puts someone in the auction to bid on items in the auction, this is not the owner of the item.