A paper or other document kept by qualified technicians respecting a specific simulator, according to their standard operating procedures, to track changes of, details of, abnormalities of, notes of, alcohol standard respecting that particular simulator (or canister of dry gas) . These documents become important useful exhibits in 258(1)(c) and 320.31(1)(a) litigation. They often reveal flaws in continuity that may rsult in an order for disclosure or production. See the image of a Toronto Police alcohol standard log herein that was made exhibit 15 in R. v. O. Note the reference by Justice Watt to the standard disclosure given by Ottawa Police to the defence in R. v. Jackson. Paper alcohol standard logs for each simulator should be maintained in every breath room.