US detectives probing Ben Cousins' alleged cocaine binge in Los Angeles are not expected to announce until early next week if the disgraced AFL star will be charged.

Hermosa Beach detectives were expecting to wrap up the case on Thursday, but say it will likely be Tuesday (AEDT) when Cousins' fate is revealed.

If so, Cousins will appear before the AFL Commission in Melbourne on Monday for a hearing which could decide his AFL career, without knowing whether he will be charged with drug offences in the US.

The AFL has charged him with bringing the game into disrepute.

But Sergeant Nancy Cook, head of the Hermosa Beach detectives unit, said: "We haven't completed our investigation."

Sgt Cook told AAP there was no link between Cousins' AFL commission appearance and the delay in announcing whether the 29-year-old will be charged.

"You can't be done until you're done," she added.

Detectives are speaking with potential witnesses and visiting locations where Cousins may have been.

Cousins' female companion in Los Angeles, Susie Ela, is likely one of the people authorities have made contact with, although authorities refuse to divulge names.

"I can tell you we are investigating," Sgt Cook said.

"That would entail going to places and talking to people, but I can't tell you who or where."

Cousins' latest brush with the law came after Ela made an emergency 911 call from her multi-million dollar Hermosa Beach home, located south of Los Angeles, on Halloween morning, October 31.

The official emergency call sheet states Ela told the operator "a 29-year-old male on cocaine was not acting right, but (was) breathing and unconscious".

She then told the operator, according to the log, that he "had been on cocaine for the past five days. He's not being violent. He's just scared".

Cousins has returned to Australia and has been staying in the seaside Sydney suburb of Manly this week.

He told local media he still hopes to play AFL, despite being sacked by the West Coast Eagles.

On Monday in Melbourne he will face the AFL Commission to answer a charge of bringing the game into disrepute.

Cousins' US legal woes came as his Perth legal troubles ended.

A Perth court this week formally dropped the second of two charges laid against Cousins after he was caught driving erratically in Perth last month.

He was charged with drug possession and refusing a driver drug test in Perth, but both have now been dropped.

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