Polygraphs are not legal in court,but are still routinely used as a screening tool against certain types of employees, such as those who will be dealing with large amounts of basically untraceable large sums of cash, intelligence operatives,some getting high levels of security clearance ,Jobs where they may encounter Federal Witness Protection Identification Relocation information(as in who they where/who they are now). You would be surprised at the amount of polygraph's going on i mean the FBI still teaches and Certifies New Polygraph Administrators and has the big clunky machine with that huge roll of paper down to a netbook and a couple of cables in a briefcase so they can rake you over the coals anywhere there is a chair.