A Limpopo SAPS disciplinary official is under investigation for allegedly committing fraud totalling an estimated R700 000, according to the South African Police Union.

The woman was responsible for presenting tenders to transcribing companies who record disciplinary hearings of police officials, the union said in a statement on Monday.

She allegedly registered a transcribing company in her husband's name and awarded tenders to this company.

According to the union, the woman gained access to SAPS computers, printed quotations from other bidders and allegedly re-submitted them with inflated quotes to make her "company's" prices look more reasonable.

Although married, she was registered in the police's employment files under her maiden name, to escape suspicion.

According to the union her husband was a street vendor who knew nothing about the company.

The alleged fraud had been going on for the past four years when the Independent Complaints Directorate uncovered it.

The union said a case had been opened and criminal proceedings were currently at an advanced stage. The Director of Public Prosecutions would decide on whether or not to lay charges. The Asset Forfeiture Unit had also been approached.