When Draven blows up the glass mound, a large shard of glass flies into the back of Agent Cooper's right calf. Later on, when the fire investigator goes to remove the shard and wrap it up with the agent's handkerchief, she removes it from the side/front of the leg, not the back.
When Draven is arrested at the gas station, he is handcuffed behind his back. But in the police car and when he gets out to go into the courthouse, his hands are in front of him.
When the fire investigator does first aid on the agent's leg (removing the glass shard), she uses a tourniquet to keep the leg from bleeding. In reality, the material used for the tourniquet should have been used to turn the handkerchief/bandage into a true pressure bandage.