STOCKTON - What goes up, must come down. That's why police are cracking down on people who ring in their New Year by firing their guns into the air.

"You've got to remember if you fire your gun, that bullet has to come down in some kind of location," StocktonPolice Officer Joe Silva said."And with that could come serious injury or death."

Using ShotSpotter technology, officers are able to pinpoint where the gunfire is coming from and hopefully crack down on dangerous celebrations.

"When shots are going off in real time, our dispatchers are getting that, we're going to be deploying officers," Silva said.

Hours before midnight, Stockton police said they were already receiving dozens of calls about illegal gunfire.

"It's already been activated several times this eveningm," Silva said."So we know as it gets closer to the New Year's hour, I'm sure Shot Spotter is going to be real active."

Police said historically, you can pinpoint the areas in Stockton with lots of gunfire during the holiday season such as South Stockton, North Stockton in the Kelly Drive Corridor and out in Northeast Stockton.

If you're caught firing guns into the sky, you could end up going to jail.