This report summarizes surveillance data collected since 1980.
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Related: surveillance
Prev: He was arrested after being kept under constant surveillance.
Next: Li Weiqi, a 40-year-old auxiliary1 traffic police officer in Hangzhou, Zhejiang province, has become a household name after a surveillance video was broadcast showing how he prevented what might have been a major tragedy last week at a busy intersection2 in the city.
