Well, they are very experienced resulting from the thorough and faultless investigation and autopsies of a couple of British back packers a few years back, they established without any doubt a couple of Burmese guy were guilty of the murders.
The only skill required was to treat everything reported, posted here and anywhere else as suspicious, however - understanding the track record of the BIB it wasn't all that hard to pick the winner.
All the previous garbage posted, twisted and mis-represented out of all proportion has now been refuted, but you can bet there will still be mentally challenged posters posting more rubbish.