Same here Craven Spirit.
I feel sympathy for the pilot of the aircraft (if he is still alive), if you are deciding his fate with your report.
You must be very desperate if you are asking Pprune for help in such an important event.
Please source the correct documents, go to a very experienced Bell 412 squadron or pilot and get them to educate you as to what perhaps happened.
In the meantime, I urge Ppruners NOT to offer any advice, for fear it may be used to destroy someone's career!
That even means you ChopJock!!!!