Minneapolis: The family of Australian woman Justine Ruszczyk Damond, who was killed by a former Minneapolis police officer last year after she called 911 to report a possible assault, has filed a lawsuit alleging the officer was unfit for duty and conspired with his partner to hide what really happened.

The lawsuit filed in US District Court on Monday alleges Damond's civil rights were violated when she was shot on July 15, 2017, by former Officer Mohamed Noor. It claims Noor and his partner that night, Officer Matthew Harrity, conspired to cover up facts surrounding the shooting and made a conscious decision not to activate their body cameras.

"Had they done so, there would be video and audio recording of the fatal shooting of Justine, and Harrity and Noor would not be free to concoct a story in a vain attempt to insulate Noor from civil and criminal liability," the lawsuit says.

It also alleges the Minneapolis Police Department failed to discipline officers who didn't use body cameras. And, it says a change in the way job candidates are screened put dangerously unqualified officers on the street.