to investigate a crime; to scout; to reconnoiter; reconnaissance; detection; a scout

to detect; to investigate

to detect; to sense

surveillance aircraft; spy plane

a scout; spy

to investigate (as detective); to solve (crime); to uncover (a plot); to sniff out; to break in and analyze; detective work; to scout

criminal investigation

to scout; to spy; to detect

to investigate (a crime) and prosecute

to eavesdrop; to tap (telephone conversations); to intercept and investigate

to track down; to investigate and arrest

to interrogate during investigation

economic crime investigation

detective; investigator; scout; spy

investigatory

detection unit

detector tube

detector

abbr. for 美國國家偵察局|美国国家侦察局

special investigation team (Tw)

to file for investigation; to prosecute (a case)

radiation detection

National Reconnaissance Office (of the United States)