MADISON, Wis. (AP) -- The Wisconsin Legislature is expected to take up bills to strengthen the state's drunken driving laws in September.

State Rep. Tony Staskunas, a Democrat from West Allis, says he believes the Assembly will vote on his bill in September to require ignition interlock devices for first-time offenders with a blood alcohol content above 0.15 percent.

The device can block drivers from starting their car if they've been drinking.

A similar measure has been introduced in the Senate but has yet to get out of committee.

There has been a lot of pressure on Wisconsin lawmakers to act given that the state's current drunken driving laws are among the weakest in the country. Wisconsin is the only state where a first offense drunken driving is a traffic ticket, not a criminal offense.