The use of lie detector tests by employers in the District of Columbia is subject to these state rules.
An employer or prospective employer in the District of Columbia may not administer, accept or use the results of any lie detector test in connection with the employment, application or consideration of an individual.
In addition, employers cannot have administered, inside the District of Columbia, a lie detector test to an employee or in or during any hiring procedure, to a person whose employment, as contemplated at the time of administration of the test, would take place in whole or in part in the District of Columbia.