1. A scanner for detecting and decoding primary and supplemental bar code labels, comprising: a laser for generating light; a video receiver assembly for detecting light patterns produced by a reflection of the light generated by the laser from one or more bar code labels passing within a field of view of the video receiver assembly and producing data based on the light patterns; and a controller for analyzing the data produced by the video receiver assembly to detect a plurality primary bar code label, the controller being operative upon detection of a primary bar code label to search a database for the bar code represented by the primary bar code label and retrieve a value associated with the bar code, the controller being operative to conduct a search for a supplemental bar code label based on the value associated with the retrieved value.