ROCKLIN (CBS13) – Scanners are vital for police officers. It’s how dispatchers contact them and how they communicate with each other. But in Rocklin, somebody is messing with that vital communication.

Police want whoever has spent the past week jamming the department’s scanner signal to stop immediately.

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“This person will come on the air at various times,” the department’s Lon Milka said. “He’ll usually give some vulgar terms, make some weird sounds, it’s just really disruptive.”

This all started last Thursday and has continued every night since.

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The person or people jamming the signal have refused to stop, despite, being read an FCC warning.

Police say they’ll have a hard time tracking down the culprit. They’re not even sure the person lives in Rocklin, but they have checked around, and they apparently are the only area police department affected.

Now police fear this scanner sneak could leave the public in serious danger.

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“It’s sent officers going in the wrong direction, to wrong places, whereas they could have been on a call helping somebody or going to another call,” Milka said.