Louise Nicholas is a New Zealand campaigner for the rights of women who have been victims of sexual violence. She has made rape allegations against at least nine men, including at least seven police officers. Although none of these allegations have been proven in court, they have resulted in several high-profile trials and an investigation into a possible police cover-up. Original accusations In 1993, Nicholas gave details regarding her claim of rape to Detective Inspector John Dewar who was in charge of the CIB at Rotorua. Nicholas stated that in 1984 the crime took place in a flat she rented in Rotorua, and she pressed charges against a single officer (who has never been publicly identified). During the investigation, Nicholas named three further men as co-assailants, Assistant Police Commissioner Clint Rickards and former policemen Brad Shipton and Bob Schollum. Three trials resulted. The first in December 1993 and a second in June 1994 were both ruled mistrials because of the introduction of inadmissible hearsay by Dewar. The unnamed officer was tried and acquitted in 1994. Additional charges against the officers In 2005, Shipton and Schollum were convicted of committing unrelated rapes at Mt Maunganui in 1989, along with three other men. During their imprisonment for the 1989 rape, as a result of media investigations, the two men and Rickards were re-tried for the rape of Nicholas, and were acquitted in March 2006. In 2007 all three men were charged with the 1984 kidnapping and rape of yet another Rotorua woman, and again were acquitted. In a related prosecution, John Dewar, the detective initially handling Nicholas' complaint, was convicted in 2007 of four charges of attempting to obstruct or defeat the course of justice because he covered up allegations Nicholas made against Rickards, Shipton and Schollum. Dewar said he thought Nicholas was lying and didn't pursue the claims to protect her from charges of perjury. He was jailed for four and a half years. Additional accusations by Nicholas During one of the rape trials, the court heard that Nicholas had said to a school teacher that she had been raped by "Maori on horseback". Alleged coverup and implications for New Zealand law After the original 1993–94 trials, Detective Chief Inspector Rex Miller was tasked with evaluating Dewar's investigation. He found that Dewar had filed his reports on the three officers without mentioning the allegations of criminal sexual misconduct. The case was