RedactedNarrative: On the evening of May 17, 2017 at approximately 18:15, operator was operating an 18'' 1997 Sea Ray 175 Five Series vessel in Nina Creek cove on Douglas Lake in Jefferson County. Operator was pulling his step-father on a tube. Operator was towing the tube around the island located across from Nina Creek Access Area. While circling the island Tuber fell off the tube. As he fell off the tube, his right foot became entangled in an additional rope on the tube. Tuber had added this rope to aid in climbing onto the tube and as a foot prop while riding the tube. Tuber was dragged by the right foot approximately 10''-15'' before his foot came free. Tuber had swelling and discoloration on his right foot and complained of pain in his left knee. Tuber was transported by ambulance from Nina Creek Access Area to Jefferson Memorial Hospital.
  
  Based upon officer investigation injuries were caused by his addition of rope to the tube handles.
  