Legal Question in Civil Rights Law in Maryland

Re: employment investigations

A prospective employer can use such methods and to such a degree as it deems necessary in doing a background check, so long as it does not infringe upon any legal rights of the employee. Usually background [hiring] checks are concluded when the employee is hired. Home surveillance is not typically done except in the movies, as it is quite expensive and runs the risk of invading the potential employee's right to privacy.