What on earth were they forging? Hours on the aircraft that they had been flying? Or hours on an aircraft type they hadn't been flying?
If they forged hours on an aircraft type that they had never flown, then I guess CASA would be able to find this out easily. What about logging flights on a company aircraft that you never did? Would'nt CASA just obtain a copy of the MR, and then add a bit more on for taxi?
And how many hours are we talking here? 1? 5? 100? 500?
Idiots!