Tennessee’s drunk driving laws are about to get tougher on those who have been convicted of DUI before. These suspects will be required to take a blood alcohol test if police believe they’re driving drunk. Most people accused of DUI have the right to refuse to take a breathalyzer or blood test. That’s about to change for those with previous drunk driving convictions, says Tom Kimble of the Tennessee District Attorneys General Conference. Kimble says the change is meant to stop people convicted of drunk driving from doing it again. Defense attorney Rob McKinney says police might not have a complete picture of someone’s criminal record.