[1] In the United States, most law enforcement agencies use live scan as their primary tool in the recognition of human individuals.
Live scan is commonly used for criminal booking, sexual offender registration, civil applicant and background check.
In the UK, many major police custody suites are now equipped with Live Scan machines, which allow for suspects' fingerprints to be instantly compared with a national database, IDENT1, with results usually reported in less than ten minutes.
Live scan package includes a PC workstation (desktop or laptop), a fingerprint capture device, a digital camera and a signature pad.
They may require additional criminal background checks from local police departments where a subject has resided in their past.