Mike
That would be covered in our constitution under bringing the club into disrepute.
If a member were proven to be involved in anything against fisheries legislation be that breaches of areas, size limits, selling fish or indeed anything the club deemed to be inappropriate then a committee would be formed to investigate the offence. The formed committee maybe just made up of existing committee members or if deemed necessary of ordinary members that are not connected with either the misdemeanor or the offender. If proven that member could be penalised and that could involve expulsion.
Hope that clarifies your question.
Martin