Will Paul O'Sullivan face more charges?

The Hawks arrested O'Sullivan on Friday as he was about to depart for the United Kingdom.

Forensic investigator Paul O’Sullivan. Picture: Tara Penny/EWN.

JOHANNESBURG - Eyewitness News understands private investigator Paul O'Sullivan may face additional charges of fraud and crimes against the State, although it's unclear what the crimes relate to.

O'Sullivan made an appearance in the Kempton Park Magistrates Court on immigration-related charges on Monday before being released on bail of R20,000.

The Hawks arrested O'Sullivan on Friday as he was about to depart for the United Kingdom.

It's understood Gauteng Hawks head Prince Mokotedi interrogated O'Sullivan for most of Sunday on a range of issues.

The pair have a history dating back to the prosecution of disgraced police commissioner Jackie Selebi; O'Sullivan even opened a criminal case against Mokotedi but this was never investigated.

Mokotedi declined to explain his attendance at the court hearing on Monday, which was also attended by Priority Crime Litigation Unit (PCLU) prosecutor Sello Maema. Maema is based at the NPA's PCLU and has been handling the cases against Democratic Alliance (DA) politician Glynnis Breytenbach, former KwaZulu-Natal Hawks Head Johan Booysen, as well those against Shadrack Sibiya and Anwa Dramat.

O'Sullivan's relatively minor offence carries a penalty of one year in prison or a fine.

His arrest came just 24 hours after he sent an email to Independent Police investigative Directorate (Ipid) and police bosses urging them to investigate acting National Commissioner Khomotso Phahlane for fraud and corruption.