Members of the public entering the Trempealeau County Government Center in Whitehall will all be screened as part of a new security system. The Trempealeau County Times says the system will go into affect on Monday, June 2nd. Visitors will have to use the main entrance with all other doors to the building being locked. Even members of the county board of supervisors will need to be screened. But county employees will not. The employees will be able to access the other entrances using their security badges. A private firm has been hired to conduct the screenings at a cost of 50-thousand dollars.