Bryon Bay woman Sara Connor has been charged with murder in relation to the death of a Bali policeman who was found on Kuta Beach with more than 40 wounds to his body.

Key points: Police say wounds may have been caused by broken beer bottle

Police say wounds may have been caused by broken beer bottle Connor's British boyfriend, David Taylor, also charged over the death

Connor's British boyfriend, David Taylor, also charged over the death Local taxi driver says he refused to take a woman with bloodstained clothes to a police station

She is also facing charges of assault causing death and group assault.

The policeman, Wayan Sudarsa, was found in the early hours of Wednesday morning with wounds police said may have been caused by a broken beer bottle.

Connor was questioned throughout Saturday afternoon, before her lawyer emerged to reveal the charges.

Bali Police Chief Sugeng Priyanto earlier told the ABC the 45-year-old mother of two's British boyfriend, David Taylor, had also been charged with the same crimes.

Denpasar Police Chief Hadi Purnomo told the ABC some of the suspects' statements did not match during initial interrogations, but both admitted to being at the scene of the crime on the morning of the policeman's death.

He said witnesses had told police "they were wrestling".

British man David Taylor is interrogated by police in Bali over the death of policeman Wayne Sudarsa. ( ABC News )

The police chief also said authorities were looking for clothes the suspects were wearing on the mornings of the alleged murder and also want to speak to a local taxi driver.

A motorbike taxi driver who police called back to the scene of the death last night had told them a woman with blood on her clothes had asked him to take her to a police station but he had refused.

Connor's lawyer Erwin Siregar, who also represented Australian Schapelle Corby, said Connor had signed a document enabling police to detain her for the next 20 days while investigations continued.

That time can be extended by police to up to 100 days.

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"We will continue to meet Sara by next Monday — she is too tired, that's why we stopped the investigation today, otherwise we would be here until midnight," Mr Siregar said.

"She is tired and, of course, sad — that is normal."

Mr Siregar said Connor had arrived in Bali on Tuesday and Taylor met her at the airport, where they bought beer before returning to the man's homestay.

"Then they are going to the restaurant, she drank a beer, and then they are going to the beach with two beer bottles, one each," he said.

Mr Siregar said the man and woman had been kissing on the beach after arriving at 11:00pm and leaving about 3:00am.

He said Connor also had a bite mark on her leg.

"I saw one only, on her thigh."

"No, no, no, no drugs involved," he told media outside the Denpasar police station, where the pair is being held.

Pair had wounds examined in hospital

Earlier in the day the suspects were taken to the Bali Police hospital to be forensically examined.

"We performed forensic examinations on the wounds suffered by the people of interest," Denpasar Police Chief Hadi Purnomo said.

Wayan Sudarsa was killed on Kuta beach. ( Supplied )

He said that was to determine "whether the wounds are new or old, including the forensic examination of the nails".

Sudarsa was found dead with 42 wounds to his body, including to his head and neck.

A cleansing ceremony was held on Saturday at the site of his death on Kuta beach.

The policeman will be cremated by his family today.

The murder charge carries a maximum of 15 years in jail.