Indonesian police say they found MDMA, marijuana and hashish at a villa in North Kuta where Leeza Tracey Ormsby, 37, was staying. According to a police document seen by Fairfax Media, Ms Ormsby was allegedly found with a joint inside her bag. Police say that when they later searched the villa they found 27 grams of hashish and 132 grams of MDMA. An electric scale, tape and plastic wrappers were also allegedly found at the villa.

Supervisor of Askara Villa Gede Wijaya said the villa had been booked from February 9 to 12 by a man who had flown back to Australia on February 11, the night before the police raid.

Mr Wijaya said Indonesian police had asked for that Australian man's details.

Ms Ormsby was born in Rotorua, New Zealand, and lives in Paddington. Her lawyer, Ary Soenardi, said she was unemployed and had arrived in Bali just a few days before she was arrested on February 12. She was in Bali to visit a friend, he said.

Ms Ormsby is also known as Leeza Morrison and describes herself on her LinkedIn profile as a fitness trainer in the Sydney area.

She was arrested at North Kuta village in Denpasar for possession, Denpasar drug squad chief Agus Tri Waluyo said.

According to a statement given to investigators, she admitted that some days before the raid a drugs party had taken place with five friends, who had then returned to their home countries.

Police say Ms Ormsby has not yet been charged.

Denpasar police said on Thursday they were still investigating the origin of the drugs.