Haw. Rev. Stat. § 445-24: Fictitious bids.

At any auction sale it shall be unlawful for any person to procure any person to make fictitious bids, or to conspire with any person to make any fictitious bid, or knowingly to permit any person to make a fictitious bid; or for any auctioneer fictitiously to raise any bid oneself; or for any person to act as a by-bidder, or what is commonly known as a "capper", "booster", or "shiller", or offer to make any false or fictitious bid, or pretend to bid for, or pretend to buy, any article sold or offered for sale.