ever employed as policemen again, but the government increased pay and conditions for police as a result. Members of the Victoria Police (as its officers are generally known) now have among the highest union membership rates of any occupation, at well over 90%. Their union, Police Association Victoria, remains a very powerful industrial and political force in Victoria. Recent history – controversy and corruption allegations In the 1980s and 1990s allegations were made against most Australian police forces of corruption and graft, culminating in the establishment of several Royal Commissions and anti-corruption watchdogs. Inquiries have also been held into Victoria Police (Beach et al.). The force was criticised because members of the public (both innocent and guilty) were being fatally shot at a rate exceeding that of all other Australian police forces combined. Related criticisms emerged after the 2008 killing of Tyler Cassidy by Victoria Police officers, which was partly blamed on inadequate training. In later years, numerous edits were made to the Wikipedia article about the killing from police computers, in an attempt to give a more favourable impression of the officers' conduct and the subsequent investigation. In 2001, Christine Nixon was appointed Chief Commissioner, becoming the first woman to head a police force in Australia. In May 2004 former police officer Simon Illingworth appeared on ABC-TV's Australian Story documentary program to tell his disturbing story of entrenched police corruption in Victoria Police. He has also written a book about his experiences entitled Filthy Rat. In early 2007, Don Stewart, a retired Supreme Court judge, called for a royal commission into Victorian police corruption. Stewart alleged that the force was riddled with corruption that the Office of Police Integrity was unable to deal with. On 2 March 2009, Simon Overland was named as the new chief commissioner, replacing Christine Nixon, who was retiring. In June 2011, Overland announced his decision to resign prematurely with effect from 1 July 2011 over what many assume were the allegations of corruption, the ombudsman criticism and the government pressure. In November 2011, then acting chief commissioner Ken Lay was named as chief commissioner after five months' caretaking. On 21 October 2011, the police force evicted Occupy Melbourne protesters from Melbourne City Square. Despite 173 arrests being made, no charges were laid against any protesters. In January 2014, a video surfaced on the internet depicting a female Victorian police officer dancing with a gun