An investigation by the Vermont Internet Crimes Against Children task force has led to the arrest of four Vermont men for possessing child pornography.

The names of the men have yet to be released publicly, but officials say the investigation happened in mid-April. They say there is no connection in the arrests, and there is no indication that the photos are of children from Vermont. The task force commander says parents should be aware of what is on their child's phones and to not let technology outpace their knowledge.

"Checking out what's on their phone, checking out what applications they're using -- when you give a child a digital device you're giving them access to talk to anyone in the world. And just like you wouldn't let them out at a young age talking to people they don't know, doing it online, their potentially being subjected to abuse from some of these people," said Matt Raymond, the task force commander.

Mojo, a yellow labrador, is one of the newest members of the task force. He is trained to detect a specific chemical found in almost all flash drives, or SD cards, that are suspected to hold child pornography.