The recently-installed metal-detector security systems at the Historic City Hall and the Busch Municipal Building will undergo one of its first tests today, according to the city.

The system will be activated for the Planning and Zoning Commission meeting at 7 p.m.

Another test will take place Friday when the system is activated at 10 a.m. at the Busch Building.

At both locations, prohibited items include explosives or explosive devices, any firearms, knives or bladed instruments with blades longer than two inches, scissors, pointed objects (except writing instruments), Mace/pepper spray, Tasers and any other devices or items designed to, or capable of, injuring or incapacitating a person, according to the city.

Small, pocket-style knives with blades or tools no more than two inches long will be permitted.

Anyone found to be carrying these items will be asked to return them to their vehicles and then return to the Busch Building or Historic City Hall. The City will not store any of these prohibited items while visitors are in the building.

A visual inspection will be made of bags, purses, briefcases and other items for the same prohibited objects.

The metal detectors will be placed at the main public entrance on the east side of the Busch Building and on the third floor of Historic City Hall.

After passing through security in the Busch Building, visitors will be asked to sign in for passes if they intend to use the elevator or stairwell to go above the first floor. Visitors to first-floor offices will not be required to sign in consistent with the current policy.