CHARLOTTETOWN- A village councillor in Prince Edward Island is asking a court to quash sanctions imposed on him after he displayed a sign on his property questioning the existence of unmarked graves at former residential schools. In documents filed last week with the P.E.I. Supreme Court, Murray Harbour Coun. John Robertson claims fellow councillors exceeded their authority and violated his rights on Nov. 18, 2023, when they decided he had breached the council’s code of conduct. The councillors then decided to impose a $500 fine and suspend him from his municipal post for six months. Robertson, elected in November 2022, was also removed as chair of the maintenance committee and ordered to write an apology to the mayor, council and the Indigenous community. The councillor’s application for judicial review, dated…