To become a licensed auctioneer you need to be individually licensed by the courts.
You must meet requirements under the Auctioneers' Act 1928, which are based on an assessment of whether you are a fit and proper person.
The court also takes into account your financial position and character.
Licences are renewed every year, and the police are responsible for vetting applicants. Many auctioning houses also conduct their own security checks before employing you.