Information held on the NDNAD is available on a police force area basis but not a constituency basis. As at 6 December 2007, there were an estimated 107,208 individuals with a DNA profile on the National DNA Database (NDNAD) taken by Merseyside police. This figure is for people who had a DNA sample taken by Merseyside police, so in addition to residents of Merseyside, it includes people resident in other areas who had a DNA sample taken by that force, and excludes people resident in Merseyside who have had a sample taken by another force.