A few state senators plan to “tie one on” this week, then test their abilities behind the wheel under the supervision of state troopers. Senator Andy Mc-Kean, chairman of the Senate Judiciary Committee, calls it a “scientific inquiry” as they consider a bill which lowers the legal bloodalcohol limit for driving drunk to point-oh-eight (.08). Mc-Kean, a republican from Anamosa, says the breweries and bars maintain there’s notmuch difference between the current standard of point-one-oh (.10) and point-oh-eight (.08), while law enforcement says there is a big difference.Troopers aren’t sure where legislators will be conducting their test, but they’ve volunteered to drive the lawmakers to and from the test site.