Journalists informed police who planted an undercover detective to trap Smith.

记者们向警方提供了信息，警方安插了一名卧底侦探诱捕史密斯。

《柯林斯英汉双解大词典》

He decided to open his own detective office after he left the police station.

他离开警察局后，决定开一家他自己的侦探所。

youdao

My name is Cole. I'm a private detective. This is a police officer.

我叫科尔，是一位私人侦探。这位是警官。

youdao

Shortly after the killer's suicide in December, Anchorage police Detective Monique Doll described Keyes as a murder addict, saying police interviews with him showed he got "an immense amount of enjoyment" from killing.

CNN: FBI shares last thoughts of a murder addict

One of them, Aurora police Detective Alton Reed, took the stand again Wednesday and said he spoke only to an Aurora police sergeant about what he saw in the notebook.

NPR: Ruling Again Delayed On Sources In Colo. Shootings

Grand Prairie police detective Brody Burns thinks Sweesy gambled much of the money away.

FORBES