電子警察 [电－－－]

Jyutping din6 zi2 ging2 caat3
Pinyin diàn zǐ jǐng chá

Definitions (CC-CEDICT)
  1. traffic camera
  2. speed camera
  3. closed-circuit TV police surveillance
Definitions (Wiktionary)
  1. noun, Shanghainese-Wu
    automatic cameras set up to photograph illegal automobile actions