http://www.legislation.gov.uk/asp/2009/1/schedule/1/paragraph/6/enactedScottish Parliamentary Pensions Act 2009LegislationPensionsMembers Of The Scottish ParliamentRestState pensionsKing's Printer for Scotland2018-01-15SCHEDULE 1Scottish Parliamentary Pension SchemePart BFund trustees6Number of trusteesThere are to be at least 3 but no more than 6 Fund trustees.