Bali police chief says Byron Bay mum is ready to confess "honest truth".

The Australian woman accused of murdering a Balinese policeman is said to be ready to confess the “honest truth” about what happened that night.

The Age reported Denpasar Police Chief Hadi Purnomo claimed Byron Bay woman Sara Connor’s version of events including her allegations of an attack by a “bad cop” was a “false statement”.

Mother-of-two Sara Connor and British man David James Taylor remain in custody for the alleged murder of officer Wayan Sudarsa.

The Sydney Morning Herald reported Sudarsa was found found dead as a result of head injuries last Wednesday morning on Kuta beach.

It was also reported a broken Bintang beer bottle believed to be connected to his death was found near the officer’s body.

The ABC previously reported lawyer Haposan Sihombing saying the pair denied killing the officer.

Sihombing, who is the court-appointed legal representation of Taylor, said his client was also set to “tell everything” on Monday.

“And he said, I’m sorry sir, I [will] tell everything in all honesty in the dossier tomorrow (Monday),” he said.

Sihombing said Taylor could possibly change or add to what he has previously said.

“Maybe he would change something or add something,” he said.

The Bali lawyer previously suggested Connor told Taylor she had been held down on the beach by a "bad cop".

Denapsar Police Chief Purnomo told the media on Monday Connor is set to "confess the honest truth."

"She will admit everything, she promised she will admit that what was said yesterday, that was a false statement," he said.

"Today she will confess the honest truth what she did."

Head of Sanglah Foresensics and Morgue Dudut Restialdi told Fairfax the officer had been attacked by more than one person and had suffered 42 wounds to his body.

It was also suggested that he had been held down during the attack due to finger marks found on his arm.

The ABC reports the pair have been charged with murder, assault causing death and group assault of officer Wayan Sudarsa.

Denpasar Police Chief Purnomi told the ABC evidence taken from blood samples at the place of death had been investigated.

"From the forensic lab result we found two types of blood on the crime scene: the suspect's and the victim's," he said.

It was not revealed who the 'suspect' to which he was referring was Connor or Taylor.

"We interrogate them and from what they say there are some statements that are the same and some statements that are not," he said.

The police are said to have up to 100 days to build a case against the pair.

They face up to 15 years jail for the crime.