The reason 60 years was chosen is that military judges are military officers in the Canadian Forces, and it was considered to be important, for reasons of consistency of personnel policy, that their retirement age be consistent with that of Canadian Forces officers generally. The age of retirement for officers in the Canadian Forces is described in QR and O article 15.17, and currently for members who have joined since 2004, the specified age of retirement for Canadian Forces officers generally is 60 years. Since military judges are military officers, as I said, that's why the age of 60 was selected.
