BALI investigators say six new witnesses have come forward in the case against Australian Sara Connor and her boyfriend David Taylor, who are accused of murdering a local policeman.

Police say the new witnesses include people who were at the site where Connor and Taylor allegedly burned the clothes they had been wearing on the morning of Wayan Sudarsa's death.

Both suspects are expected to be returned to the scene of the alleged crime for a full reconstruction of the officer's death.

It will be the first time they will be confronted with each other's version of events.

"Our agenda is of course to prepare the dossier. We will do the reconstruction in the future and we will tell you about this," Bali's crime unit chief commissioner Reinhard Nainggolan said.

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