RedactedNarrative: P1 was aboar the boat (YYYY) which was morred in Slip D18 at the Roche Harbor Marina.  P1 was running th eneinges for the owner P2 as a monthly dock watch service.  P1 stated the engines of the boat were running when he heard a boom and the boat lifted up.  P1 went to the cabin area and lifted the cover.  When he did this he found a fire on the left side of the engine.  P1 closed the ocver and left the boat.  When P1 retruned to the boat after calling 911 and notifying the harbor master, he was unable to locate and extinguisher and the fire was too large to try to put out by himself.  When I arrived on scene P1 was at the end of D Dock on the main boardwalk of the marina.  I contacted P1 and he described this to me.  I noticed the smell of alcohol coming from his mouth when he spoke.  P1 walked with me to my patrol car to fill out a written statement. While we were there he provided two breath samples for my PBT.  The first result was .055 at 1440 hours and the 2nd was .054 at 1433 hrs.  P1 provided tow samples because he didn't understand why the PBT showed signs of alchol when he hadn't had anything to drink.
  
  The buring boat (YYYY) caused the boat XXXX, moored in Slip D20 to also catch fire.  YYYY sank and XXXX was in the process of sinking when I left the scene.  Both boats had an oil spill, which initiated IOSA to become invloved in an oil cleanup.  The other surrounding boat in close vicinity to the fire were moved by vessel assist.  I should be noted, while I was still present there were 2 explosions aboard the boat.  Fire Authorities believed it was caused by 2 propane tanks on the boat.
  
  After speaking with the o P2, I was aidvised their had been mechanical issues with the boat throughtout the previous summer.  He and his brother, a mechanic, had taken the carburators off in Spetember and had not been put back on.  P2 Descrbed having put painters tape over the carburator since September.  P2 also stated he notified everyone including P1 the the carburators were off the boat.  It is probable fuel was introduced into the engine campartment and ignited by wither the engine being turned over a blige pump activation.
NameOfBodyOfWater: Puget Sound
NearestCityTown: Friday Harbor                 