National Party MP Sam Uffindell is back in caucus after an investigation did not substantiate allegations of aggressive behaviour against a young woman.

The woman, who was his flatmate while at Otago University, said she escaped through her bedroom window, because she feared for her safety.

But the report by KC, Maria Dew, found there are differing accounts of what occured, and the event was not as it was described in the media.

RNZ political editor Jane Patterson joins Lisa Owen to discuss the details of the saga.