People are drawing some pretty broad conclusions from not very much information.
True.
But valid.
There is a legal term that covers this:
"falsis in unum, falsis in omnibus" and lawyers are the guys who will be involved if it is discovered.
So it is a pretty fair extension to assume that if he is cheating on the time sheets, he has to be considered as probably also performing some other frauds.
And, as IRstuff suggests, he risk to MetalFighter is what sticks to MetalFighter and hence a valid suggestion to check out what else maybe going on .... and we have another thread where a boss is condoning/colluding with a client who is changing drawings to show this vulnerability.
At some point the concerns will escalate.
If you find something more is going on, at what point does it become an issue of "to report this or not report it to the "authorities".
It seems to me that all too often in these threads the advice is "start looking for another" job. Do we hand that out too often? These are tough times and jobs are hard to get.
But I think the answer is that when you consider what is at stake, this is often the very best advice and should not be overlooked.
In some cases, and there is thread current where it is the case, the advice is to get out now, with or without another job to go to.
In most cases looking is a precaution, having a job offer in hand is insurance for tackling that tough issue and in some cases it is a necessary move.
JMW