Welcome to China Amerika! Arrested and jailed overnight for refusing to sign a citation for posting signage that she didn't post ... Epoch Times: Daily Protests in San Francisco Follow Arrest: Case raises concerns of discrimination Cao Li, the principal of a performing arts middle and high school, who graduated from the prestigious Beijing Dance Academy, was arrested by police after she refused to sign a citation for posted signage that was posted by someone else....Ms. Cao had just arrived at the site after which she was approached by police officers asking her to sign a citation for hanging the signs. Cao refused to sign the citation believing it was admitting guilt to something she didn’t do. “At this point, rather than explain in detail the nature of the document she was asked to sign, the police officers restrained her and took her into custody without any apparent legal basis,” said Marsh.“Ms. Cao appears to have been arrested without articulable suspicion, much less probable cause, of criminal conduct,” she said.Cao was transported to the Southern Police Station where she was kept overnight, while still not knowing why she was detained or what charges she might face. Her arrest sparked an overnight protest at the police station with protests continuing on a daily basis.