Car burglaries in Rapid City have been on the rise in the last couple years, with an average of about two and a half incidents every night.
Now with the holiday season upon us, the police department wants people to lock up to lock out burglars.
Officer Evan Harris has been cruising the streets of Rapid for the last few years.
"I did nights probably for three years," he said.
Harris is now working morning shifts. That's when a lot of the reports come in.
"Certain nights are busier than others," Harris said. "Maybe a whole neighborhood is hit."
And more often than not, the cars that are "hit" aren't even hit.
"A lot of times the sound of a window breaking is loud, almost like a gunshot," he said.
So most of the burglaries happen when people don't lock their cars. Now the police department is taking action.
"This is our latest push," Rapid City Police Chief Steve Allender said.
He said it comes at a good time for a reminder.
"Especially with the holiday season coming. ... We'll have Christmas gifts taken out of cars in shipping center parking lots," said Allender.
With car burglaries up 15 percent over the last two years, that's one thing two new public service announcements from the department are trying to prevent.
It's an "easy crime to suppress," Allender said.
"If you just lock your car doors and keep your stuff out of sight," Harris added, "those are probably the two main tips we can give people."
Police say part of the problem might be Rapid City still has a bit of a small-town feel, and people simply don't want to believe it's not safe to leave their cars unlocked.