RedactedNarrative: Vessel 1 was being operated by operator.  He was pulling victim on a tube in the north end of lake shafer.  Operator was trying to throw victim off the tube and made a turn with the boat that caused the tube and victim to be flung into the dock.  Victim struck the dock with the bottom of his right foot.  The impact caused his tibia to break below his knee and at the ankle.  The bone then caused a compound fracture to his leg.  A tourniquet was applied to the leg to control the bleeding.  Victim was airlifted to methodist hospital.  The doctors had to amputate his lower leg due to the lack of blood and damage to the leg.
  
       when i arrived on scene, i talked with subjects.  I could detect a strong odor of an alcoholic beverage coming from operator, but nothing from the other two.  They all stated that subject1 had been operating, but after further investigation on the following day it was found that operator had been operating the boat.
  