To be honest it doesn't matter what his background is. Whether he enjoys skiing holidays in France or can juggle. What only matters is his relevance to the case or Jeremy Bamber.
Agreed but if he is inclined towards being untruthful, embellishing etc it surely follows he might not be the most reliable witness! Especially given it is in the parish mag where he is a parishoner! If I was that way inclined, which I am not, I would be fearful of the bearded man in the sky coming to get me!