A woman accused of raping her female partner with a sharp object during a violent domestic dispute will remain behind bars.

Police allege the 25-year-old, who can't be named for legal reasons, inserted either a screwdriver or knife in her partner's vagina, and strangled her during the dispute.

One police officer has been indicted on five counts of rape while all charges against the other have been dropped.

The 30-year-old victim also suffered injuries to her face, arm, ears and eyes, police said.

It's believed some of the injuries may have been sustained as another couple staying at the boarding house intervened.