Leave the phone in your purse or pocket. Missoula Police Officers will be keeping a watchful eye on drivers who use their phones when driving on our streets.

Prepare to be fined if you decide that the call is more important than your safety, as well as the safety of others around you. You may have to shell out onwards and upwards of $500 to the Missoula County Court House.

Research shows that if you're talking on a cellphone while driving, you're four times more likely to be in a crash.

The new law is enforceable February 5.