Labor Day: another holiday, another excuse to push the limits of the police power over citizens. All across the state, Tennessee police will be performing another round of highly-publicized “no refusal” blood-draw DUI checkpoints this weekend. With police armed with a 2012 law that allows them to forcibly extract blood from drivers, its a bad time to be a citizen who does not consent to searches. Forcible blood draws began in Tennessee in 2009, being used only for cases of vehicular assault. In all other circumstances, the blood draws were not forcible. They could be declined, with the understanding the...