It's been in use almost daily since 1999. We will put the trailer at a location and then go back in the following days and log traffic. In most cases we will log four to six hours at the site to determine whether drivers have reduced their speeds. Another way that the police can tell that the radar trailers are working is that they don't continue to get complaint calls from locations where the trailer has been parked. In Snohomish, the streets that are commonly high speeding locations are along Avenue D, First and Second streets and 10th Street.
Police also like to target areas that are near school crossings.
Officer Tom Davis came up with the idea to get local businesses to help fund radar trailers. That's the reason why we've got two of them. Other cities have been able to purchase them through departmental budgets. In Marysville, a radar trailer was purchased two years ago and is used often to slow speeders on State Avenue and near schools. Bothell has two.