Hi BW,
You know I am only a simple quack but I have never heard this before and would be interested to see the evidence on which GASIL bases its assertion.
A discussion regarding this was recently had on a different BB and I wrote there that it is well documented that people after their demise start producing alcohol. However that is only of importance for post accident investigations as the distribution across the different tissues can give an indication on whether alcohol was present at the time of the accident or not.
I have yet to come across any article or evidence that endogenous alcohol production is a possible contribution to people being over the blood/alcohol limit.
Am pretty sure that if there was any mileage in this we would have seen defense cases being set up along these lines for well heeled drink drivers.
Would be keen to find out more if you come across it will have a look if I can find more but if Medline came up without anything I suspect there will not be a lot out there.
Ciao
FD