One of Britain's most senior police officers has urged supermodel Kate Moss to return home to answer questions over her alleged cocaine use.

Metropolitan Police Assistant Commissioner Tarique Ghaffur said he wants Moss to tell police her side of the story.

"For everybody's sake, and for her to move on, the sooner she speaks to us the better," Ghaffur said in a statement Thursday.

"We wish for the investigation to take its course, and she would be dealt with very fairly and proportionately, as would be the case with anybody else."

Moss, 31, lost valuable contracts with H&M, Burberry and Chanel after the Daily Mirror tabloid in September published pictures of her apparently using cocaine in a west London music studio where her then-boyfriend, rock musician Pete Doherty, was recording with his group Babyshambles.

She later went into a rehab clinic in Arizona and hasn't been home since; she was pictured earlier this week skiing in Aspen, Colo.

There was no immediate comment Thursday on Ghaffur's request from the Storm model agency, which represents Moss.

Ghaffur, who is responsible for specialist crime at the Metropolitan Police, said police have no plans to send officers to the United States. But he said police are in contact with Moss' representatives.

"What I can say, on behalf of the investigation, is that the net on others involved is closing in, and there will be arrests," he said.

As part of the investigation, police have searched the studio where the alleged incident took place and obtained a full digital recording of the alleged drug abuse.