This practice should be replaced with one that uses random numbers to select individuals. Geographical distribution . To the extent possible, the panels or pool of prospective jurors should represent the entire jurisdiction. Lack of representation for a distinct area of the jurisdiction could indicate that a geographical listing such as the voter list is being used sequentially rather than by a random selection from the entire list. Data Analysis and Report Preparation .
Nonrandom results are usually the result of the use rather than the generation of random numbers.
The problem is in how these numbers are used to select names. If these names represent more than a few percent of the source list, this could be the cause of the problem. Voter registration lists are often geographically separated by precinct, ward, or district. Lists ordered by voter registration number may have an age order with older citizens having lower voter numbers. The same list could be counted by ZIP Code, and the distribution of those selected should match the distribution of the source list.