******Volume warningPolice body camera footage shows the interaction between Chattanooga officer Cody Thomas and Nate Carter on April 13, 2018.Thomas arrived at Vance Street looking for a man named "Polo" who had threatened a neighbor with a gun. But Carter said he wasn't Polo, wasn't involved and didn't want the officer on his property.The interaction is now the subject of a lawsuit filed Monday , April 1, 2019, charging unreasonable use of a stun gun and false arrest.