On 5 jul 13 at about 1630 hrs, dispatch advised me that an ambulance had been paged for a wake boarder that had a broken femur.  Dispatch advised that the boat was going to walstad state park to meet the ambulance.  I responded to walstad state park by water on me-2.
On scene, i spoke with operator vessel 1 who advised he had been driving the boat when the wake boarder had been injured.  Operator vessel 1 advised that the boat (mt0366ay) belonged to his father, owner vessel 1.  He stated that they had not been on the water long and they had gone over by the sw side of wildhorse island from walstad state park. Operator vessel 1 said that victim was a new wake boarder and it was about the 3rd time trying to pull him up that he broke his leg.  He said that they were going slow and victim did not really get up out of the water.  Operator vessel 1 stated that victim wobbled and then went down.  He said when they circled back to him he seemed in shock.  He said they pulled victim out of the water and occupant 3, who was a physicians assistant, thought he had broken his femur.  Operator vessel 1 said that they called 911 and went back to walstad state park to meet the ambulance.
Operator vessel 1 stated that there were 4 people on the boat at the time of the injury.  He advised that himself, passenger 1, passenger 2 and passenger 3 were on the boat.  I asked operator of vessel 1 if he had been drinking alcohol that day as i could see an open beer sitting on a cooler in the boat. He stated that he had opened a beer and had only sipped it.  I could not detect any impairment or the smell of an alcoholic beverage  on operator vessel 1.  I checked for any nystagmus and operator vessel 1 did not have any.  While i was speaking with operator vessel 1, deputy did a boat safety inspection on the boat and the boat had all required equipment on it.
I spoke with passenger 1 who advised she had been sitting in the passenger seat next to the driver and had been facing backwards as an observer.  She said that they had not been on the water very long and it was the 3rd or 4th time they tried to pull victim  up on the wakeboard.  She said that she noticed that the wakeboard seemed to twist and that the victim did not let go right away.  She stated that the boat had not been going fast.
I later spoke with the victim.  He advised that he had been new to wake boarding.  He said he had tried to get up on the wakeboard 3 times and on the fourth is when he was injured.  The victim stated that he was trying to get up and he felt like his body twisted and he heard a pop.  He said that he wasnt sure what had happened.  He advised that it was his right femur that broke.  He advised that it was a spiral break and he had been taken to st patricks hospital in missoula by ambulance.  He said he had four beers during that day.
I also called and spoke with passenger 2.  Passenger 2 advised that he had been sitting in the back seat of the boat facing aft.  He said they had not been out very long.  He said that the victim tried to get up on the wakeboard 3-4 times.  He said the last time, the victim barely got out of the water and he went down.  Passenger stated that when they circled back to him  shock and said " something popped in my leg".  He said that someone called 911 on their cellphone.
Polson