The Advent wreath is a circular garland of evergreen branches representing eternity. On that wreath, five candles are typically arranged. During the season of Advent, one candle on the wreath is lit each Sunday as a part of the Advent services.
Combined DNA Index System. The Combined DNA Index System (CODIS) is the United States national DNA database created and maintained by the Federal Bureau of Investigation.
The acronym NDIS stands for the National DNA Index System, one component, albeit an integral one, of the CODIS program. One of the underlying concepts behind the development of CODIS was to create a database of a state's convicted offender profiles and use it to solve crimes for which there are no suspects.