[Scan-DC] "Signal 13" - Montgomery County Police?

[Doug Kitchener]

Montgomery County Police dispatcher on Ch 6 (or whatever they call it now) (Gaithersburg district) just put out an alert tone and a "Signal 13" for a car on Crestwood Terrace - then put out restricted air.  Then somebody reported one in custody... all at once; it seems to be over now... but does anybody know exactly what a Signal 13 is?

1745, KXF-425

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