A key lock which can be used particularly flexibly and cost-effectively has a communication device for wire-free linking of the key lock to an actuating mechanism. Each domain has a point of presence for accessing agents and services provided thereby. Each mounting bracket includes a base member mounted on the frame structure and a riser mounted on the base and mounting a respective tooling member. The loyalty dollars are then applied to the purchase transaction as a discount or rebate. The imaging technique of the present invention exploits these properties, as well as the polarization properties of light to sense information about the scattering media.