RedactedNarrative: At approximately 17:25 on Sunday, August 31, 2014 while on a boat patrol of the Illinois River, Sergeant and I observed an ambulance at the Pere Marquette State Park boat launch. Upon approaching the scene, we determined a woman had been injured in a boat accident. Witnesses on scene directed me to the boat involved (1995 Harris Kayot with Illinois registration IL 7214 JG) which had been trailered. 
  
  I approached the watercraft and made contact with the operator identified myself and began questioning him on the incident. According to Operator, the accident occurred while pulling a skier upstream approximately one mile downstream of 12 Mile Island. Operator advised the skier had fallen. As a result, Operator brought the watercraft to a stop. He then accelerated and made an abrupt turn to the left to retrieve the downed skier. While making the turn, subject, who was sitting on the port side of a seat extending from the port side to a starboard side walkway, slid off the seat. The impact with the boat caused injury to lower back. I obtained Operator''s contact information before clearing the scene to allow Operator to respond to the hospital. 
  
  On Tuesday, September 9, 2014, I made phone contact with Operator. He advised victim was taken to Alton Memorial Hospital and treated for a fracture to her lower back. She was released the same day. Operator explained victim has a history of back injuries aside from those sustained from the accident. No enforcement action was taken.