侦查 (偵查) zhēnchá

zhēnchá verb to detect; to secretly investigate
Domain: Modern Chinese 现代汉语
Notes: (CC-CEDICT '偵查'; Guoyu '偵查'; Mathews 1931 '偵查', p. 42)

Contained in

• 立案侦查(立案偵查) to file for investigation; to prosecute (a case)