the Legislative Council's approval of the project, a group of demonstrators tried to break through a security cordon and were met with pepper spray. Secretary for Security Ambrose Lee subsequently condemned demonstrators who clashed with the police, saying that they "violated stability and law and order" and would not be tolerated. When the police was questioned by the Legislative Council for their use of pepper spray, assistant police commissioner Austin Kerrigan claimed the force used was not excessive. He accepted many protestors were peaceful, but said some had crossed the line. He did not directly answer the legislators' question as to whether ample warning was given before using pepper spray. It was revealed 7 police officers suffered injuries in the clash. During the Umbrella Revolution in 2014, the Hong Kong Police faced allegations of police brutality in their handling of protesters. A report released in 2015 claimed that there were over 1,900 complaints filed against the police but only 21 were chosen to be investigated by the police. One incident where a protester was led by seven police officers to a remote location and subsequently beaten received significant media coverage and public outcry. The Hong Kong Police Union was criticized for holding a rally in support of the seven officers. Political neutrality of the police Political activist Christina Chan claimed that policemen visited her parents' home the day before the anti-high-speed rail demonstration and asked irrelevant questions. After being arrested for assaulting a police officer in the execution of his duty and subsequently bailed, she claimed the police did not ask any relevant questions to the incident, but harassed her instead. In February 2010, immediately after Andrew To became the Chairman of the League of Social Democrats, he was charged with assaulting a police officer in the execution of his duty for his conduct during a demonstration on 1 October 2009. To claimed that certain video records showed that it was the police officers who punched him, and that he did not assault the police. He expressed his belief that the charge was based solely on political ground. Independence of the police and accountability on policing Regional police forces are not governed by a police authority consisting of elected officials and local members of public, but solely reports to the Security Bureau of HKSAR government, headed by appointed civil servants from the executive branch of government. Complaints about the police