The Independent Football Regulator (IFR) has contacted the police in relation to West Ham co-owner David Sullivan.
The 77-year-old has been accused of sexually exploitative and predatory behaviour by seven women during a joint investigation by BBC Panorama and The Times, allegations he has categorically denied.
A spokesperson for the IFR said its enquiries into the suitability of Sullivan under its Owners, Directors and Senior Executives (ODSE) regime were "active and ongoing", adding: "We are in touch with relevant authorities as part of this process."
The Press Association understands Essex Police are one of the authorities contacted by the IFR.
The IFR has the power to launch a formal assessment under its ODSE remit. One outcome of a formal assessment is to force an owner to divest their shares in a club.
Sullivan attended the Hammers' Carabao Cup tie against Portsmouth on August 8 against the advice of the London Stadium's landlord, which had warned of the potential for "demonstrations and anti-social behaviour by some spectators".
- Reports detail women's claims of sexual coercion against West Ham co-owner
- David Sullivan advised to avoid West Ham home games amid allegations
- West Ham co-owner David Sullivan attends West Ham cup win despite advice to stay away
The club's ownership status remains uncertain. A consortium featuring former Newcastle director Amanda Staveley has agreed to purchase the Gold family's 25 per cent stake but current shareholders - including Sullivan - will also be presented with the chance to buy out the stake under an ongoing process.
The IFR spokesperson added: "We are aware of the potential sale of shares at West Ham. Any new owner, director or senior executive of a club that falls within the scope of our ODSE regime will need approval from the IFR before they take up that role.
"We have a broad but fixed list of matters we can consider - all set out in statute. This includes assessing all candidates against the IFR's test on financial soundness, sufficient financial resources, source of wealth, and honesty and integrity - including a check on any criminal proceedings or convictions, civil actions and other regulatory investigations."
