前几天看到一个美国电影，警察遇到紧急情况，说到“We have a 980 here.”

字幕翻译为“我们遇到紧急情况”。

我便好奇980为什么会是遇到紧急情况的意思，一开始还以为是美国什么俚语，于是搜得以下结果，发现这是美国警用代码。可以看到，980 对应着 Restrict calls to emergency only.长见识了：

原链接：https://web.stanford.edu/~reneeb/bill/n.radio.code.html

10-7A Out of service at home.
10-7B Out of service – personal.
10-7od Out of service – off duty

10-8 In service/available for assignment.
10-9 Repeat last transmission.
10-10 Off duty.
10-10A Off duty at home.
10-11 Identify this frequency.
10-12 Visitors are present (be discrete).
10-13 Advise weather and road conditions.
10-14 Citizen holding suspect.
10-15 Prisoner in custody.
10-16 Pick up prisoner.
10-17 Request for gasoline.
10-18 Equipment exchange.
10-19 Return/returning to the station.
10-20 Location?
10-21 Telephone:______
10-21a Advise home that I will return at ______.
10-21b Phone your home
10-21r Phone radio dispatch
10-22 Disregard the last assignment.
10-22c Leave area if all secure.
10-23 Standby.
10-24 Request car-to-car transmission.
10-25 Do you have contact with _______?
10-26 Clear.
10-27 Driver\’s license check.
10-28 Vehicle registration request.
10-29 Check wants/warrants.[vehicle] (PIN,SVS)
10-29a Check wants/warrants [subject] (PIN)
10-29c Check complete [subject]
10-29f The subject is wanted for a felony.
10-29h Caution – severe hazard potential.
10-29r Check wants/record [subject PIN,CJIC)