Youngest civilian to represent a claimant during a employment tribunal?

i am trying to find out the youngest person to go up againts a barrester in a employment tribuneral for a 5 day hearing.

Youngest civilian to represent a claimant during a employment tribunal?
Summaries are here: http://www.employmentappeals.gov.uk/ but the ages of the representatives are not given as it is not relevant to the case.