JESSE Hogan is under police investigation after admitting to a breach of Western Australia's quarantine orders.

Hogan returned to Perth last week and was in the midst of 14 days of isolation when police visited on Tuesday night, in accordance with the government's monitoring procedures.

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The Fremantle forward confirmed to police he had a female visitor attend his home on September 22 and enter the premises, a breach of the WA government's quarantine directions orders.

The matter is now under police investigation.

Hogan told the club on Tuesday night and is required to complete the remainder of his 14-day quarantine period in a hotel.

Fremantle CEO Simon Garlick said the club's players and staff were all aware of the restrictions they were required to comply with and Hogan would now have to face the consequences.

"We have worked very closely and effectively with WA police, the state government and the AFL throughout the year, which provided us with the opportunity to complete our AFL season," Garlick said.

"The cooperation and understanding we have received from all parties during the season is something we do not take for granted.

"This makes the breach even more disappointing and incredibly frustrating.

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"We will wait for Jesse to complete his hotel quarantine before determining what club-imposed sanction he will face.

"In the meantime, we will be reinforcing with all quarantined players and staff the importance of strict adherence to their quarantine protocols."

The club has also advised the AFL of the matter.