Peterborough Public Health closed Rogers Cove beach on Little Lake on Wednesday following the results of water samples with suspected blue-green algae blooms.
The filing is the latest in an ongoing legal battle over the management of The Stronach Group's and the family's wealth.
A defence lawyer for one of two men accused of conspiracy to commit murder at the border blockade at Coutts has suggested many of the guns seized are rifles used for hunting.
