Abstract: An access control system (10) includes a door (11), a locking device (15) which includes a latch (16) which is moveable from a locking position in which the latch (16) prevents the door (18) being opened and a released position in which the latch (16) permits the door (11) to be opened, the locking position to the released position, a controller (22) for operating the release mechanism (20), a dispenser (40) for dispensing on each dispense, a quantity, of an antibacterial agent, an actuating device (25a,25b, 31) for providing a first, command, signal to the controller (22) to operate the release mechanism (20) for moving the latch (16) to the released position, a sensor (44) to sense use of the dispenser (40), a sensor (49) to confirm receipt or the solution and correct usage and to provide a second, sensor, signal to the controller (22) to indicate that the dispenser (40) has been used correctly, the controller (22), on receipt of both the first and second signals operating the release mechanism (20) to move