DOUGLAS COUNTY, Colo. -- When it comes to protecting children from the bad guys, you may want to take a closer look at their smart phones.
The Douglas County Sheriff's Office is warning parents about smart phone apps that can lead predators right to children.
They singled out one particular app call "Grindr," which is one of more than a dozen so-called "hook up" apps, which use GPS technology to find the phone user's exact location.
"What's happening is that young people are getting on there and now they are falling victim to folks that are adults," says Douglas County Undersheriff Tony Spurlock. "These are adult apps. These are not for children to be on."
Investigators say parents need to know about risks and encourage parents to disable kids' ability to download apps without permission.