It's not rape if you wear a condom
From China Digital Space
戴避孕套不算强奸 (dài bì yùn tào bú suàn qiáng jiān): It’s not rape if you wear a condom
This phrase comes from an incident that took place in 2011 in the southwestern province of Guizhou. In May of 2011, 26-year-old middle school teacher Zhou Qin was invited to a banquet by her school's principal. While at the banquet, the teacher was compelled to toast with the officials in attendance, consuming a quantity of liquor far beyond her tolerance. One of the officials present, local Bureau of Land and Resources chief Wang Zhonggui, is alleged to have raped Zhou while she was intoxicated. Initially, local police refused to classify the incident as rape because evidence suggested that Wang wore a condom. The incident became a widely discussed topic on Sina Weibo, and the term “rape” (强奸) was briefly harmonized on the popular social media network. Approximately two months after the rape occurred, Wang was arrested.
The police officer is saying, "It's not rape if he was wearing a condom." Wang Zhonggui, protected in a cocoon-like condom, is identifiable by his official's hat.
The book has the word "law" written on it.