Section 127.1232(b) of the Texas Election Code requires the general custodian of election records in a county with a population over 100,000 to implement a video surveillance system that retains a record of all areas containing vote ballots: (1) from the time the voted ballots are delivered to the central counting station until the canvass of precinct election returns; and (2) from the time the voted ballots are delivered to the signature verification committee or early voting ballot board until the canvass of precinct election returns.