Morsch represents 12 people who have sued the city over traffic stops turned searches by one group of Chicago officers, the 1863 tactical team. >> Most drivers don't realize this. Police can legally stop your car for almost any traffic violation. A broken tail light, not signaling, rolling a stop sign. Under a Supreme Court ruling called Wren versus United States, that stop is completely legal. But here's where it gets controversial. Some officers use those minor violations to start fishing for bigger crimes, looking for drugs, looking for guns, looking for a reason to search the car. That tactic is now at the center of several lawsuits involving a Chicago police tactical team. Because the question isn't always why the stop happened, it's what happened after the stop. Thin blue lies, baby.