Land and Business (Sale and Conveyancing) Act 1994

An intending bidder at an auction of land or a business, or a person acting on behalf of an intending bidder, must not—

knowingly prevent or hinder any other person whom he or she believes is an actual or potential rival bidder from attending, participating in or freely bidding at the auction; or

harass any other person whom he or she believes is an actual or potential rival bidder with the intention of interfering with that other person's attendance at, participation in, or bidding at the auction. Maximum penalty: Maximum penalty: $20 000.

A person must not do anything with the intention of preventing, causing a major disruption to, or causing the cancellation of, an auction of land or a business. Maximum penalty: Maximum penalty: $20 000.