With the disclosure that two civilian employees reported false results in testing drug bags in 2002 at the police crime laboratory, Police Commissioner Raymond W. Kelly has ordered a shakeup of the Forensic Investigations Division and the creation of an oversight panel, the authorities said yesterday. The changes come as a rebuke to the forensic unit’s former commander, Deputy Chief Denis McCarthy, who was recently transferred to a patrol division. Chief McCarthy, a 27-year veteran of the department, was in charge in 2002 when the two employees were found to have engaged in “dry-labbing,” or cutting corners in the process...