Ignition interlock devices aimed at stopping drunk driving work fine, but sometimes laws don't.

That's why Mothers Against Drunk Driving says Alabama's laws need to be stronger.

Alabama lawmakers in 2014 passed a bill mandating those convicted of impaired driving use an interlock device.

If they have been drinking the car won't start.

But, MADD claims many people charged with driving under the influence are going into court diversion programs.

Others have their charges reduced to reckless driving.

When those things happen interlocks often aren't required.

Frank Harris with Mothers Against Drunk Driving says:

"Right now in Alabama depending on where you are you can get a free DUI and there's no consequence and there's no there's no way the public is being protecting."

When the legislative session begins in January Alabama lawmakers will consider closing DUI loopholes.