Thanks to the wonders of computer and communications technology,  criminal record  databases in many countries, including the United States, are easily accessed throughout the entire country. Back in the day, it would usually take weeks or even months to conduct a comprehensive criminal record background check on any person, especially if that person has traveled across several jurisdictions. Now thanks to technology and interlinked databases, complete records could be had in mere minutes, or even seconds. This is a great boon to law enforcement agencies all over the country for the time savings generated.