The government is investigating complaints about a concrete laying operator who has been bankrupted four times.
The Ministry of Business Innovation and Employment (MBIE) is looking into allegations about the quality of Gordon Paul Bayne's services.
MBIE's Integrity and Enforcement Team are undertaking the investigation on behalf of the Official Assignee (OA).
Mr Bayne has been bankrupt four times and its an offence for someone in his position to manage a business without prior consent, MBIE's spokesperson Ross van der Schyff said.
The offence can result in a two year prison sentence.
Mr van der Schyff said if bankrupts were thought to be concealing assets then MBIE would investigate.
"We rely on bankrupts to honestly inform us about their affairs. Bankrupts owe a duty to disclose information to the OA."
Mr van der Schyff said if found to be the case Mr Bayne could face a three year prison sentence.
MBIE is urging people to get in touch if they have done business with Mr Bayne.
The OA encourages anyone who may be considering entering into a contract with an individual or business to do some due diligence first, including checking the insolvency registers.