Police set up 7 days a week usually during daylight hours. Enforcement is particularly high on holiday weekends. Ontario Provincial Police like to setup laser traps east of Highway 37 at the end of a few flat, straight stretches in this area where they know people will be tempted to speed. The traps consist of three to four hidden chase cars also equipped with Ka band radar. Some of these cruisers are unmarked, and a couple carry Spectre III radar detector detectors.