Start off with who you are and what he is (fren')
How long you have known him
whether he is employed with whom and how long - whether it is stable employ
what you do in socialising - long walks, crosswords, go down to pub
that you are writing it in relation to (the charge)
and whack it off to the lawyer
who as above will return it if he doesnt like it
and length - one side of A4 - allows you to get quite alot in.
Only mention things you know about - so comments about the facts of the case are out - you werernt there - and goodluck
we found it straightforward