Managers have known for months that a number of workers at Los Angeles County medical facilities have criminal records, but they took little or no action, Los Angeles County Chief Executive Officer William T Fujioka has announced. Fujioka said the information was discovered after the county ordered fingerprints from all 1,600 employees working at Martin Luther King Jr.-Harbor hospital when it closed inpatient services nearly a year ago. The California Department of Justice returned with information that some employees had previously undisclosed criminal histories, but the county's Human Resources Department did not take appropriate disciplinary action against them, Fujioka said.