London police are taking a hard-line against those who use their cell phones while driving.

The number of those charges has jumped by 30 per cent.

In the first five months of 2012, 739 people were charged and over the same period this year that jumped to 961.

Traffic Sgt. Ryan Scrivens says his officers are on the streets daily cracking down on those who use their cells while driving.

"A lot of people have their heads down in their laps, looking at their device and not looking at the road," says Scrivens.

"Some studies suggest that these time frames for each text are 4 seconds. Imagine closing your eyes for 4 seconds and as unreasonable as that seems, that's what happens when you send a text," he adds.

Jake Mogk was one of those who was pulled over on Tuesday.

He's well aware that its wrong, but he was using his cellphone to Google a map.

"You're not paying attention to what's beside you or around you. It can cause an accident real quick," says Mogk.

Driving while distracted is one of the four big killers on our roads.

Police say statistics show that you're four times more likely to be involved in a crash if you're talking on your cell phone, and if you're texting, that jumps to 23 times more likely.

"We're focused on distracted driving 365 days a year, so we can do our part to make sure our roads are safe," adds Scrivens.