Memory fades.
I think most solicitors will have experience in this field as this has become an all too often issue. It is important however he knows a barrister who has experience in this area.
I would suggest that you put everything down on paper now as a persons memory can fade. Get details of your work colleagues phone numbers and addresses as you may need to call on them in the future. If attending any meetings bring along a tape recorder, get hold of previous appraisals etc. At a time like this you may feel that you have done something wrong so try and remember when you were asked to speak at functions, participate in staff outings, worked your days off, overtime and generally were a decent and helpful staff member. Keep all your payslips, p60's, appointment letters, terms and conditions of employment etc
Best of luck.