Police gear displayed in Beijing Police uniforms and protective gear are showcased at the 6th China International Police Equipment Fair in...

Police gear displayed in Beijing

Police uniforms and protective gear are showcased at the 6th China International Police Equipment Fair in Beijing on May 22. [Photo/Asianewsphoto]

A visitor sits in a helicopter at the 6th China International Police Equipment Fair in Beijing on May 22. [Photo/Asianewsphoto]

The 6th China International Police Equipment Fair kicked off in Beijing on May 22. The fair is the biggest one in the Asia-Pacific region, which helps modernize China's police equipment, and attracts more attention from abroad. [Photo/Asianewsphoto]

Peter Hirrel holds a night vision device at the 6th China International Police Equipment Fair in Beijing on May 22. [Photo/Asianewsphoto]

An unmanned aerial vehicle is displayed at the 6th China International Police Equipment Fair in Beijing on May 22. [Photo/Asianewsphoto]

The 6th China International Police Equipment Fair kicked off in Beijing on May 22. The fair is the biggest one in the Asia-Pacific region, which helps modernize China's police equipment, and attracts more attention from abroad.