D.C. Mun. Regs. tit. 6, r. 6-A1106
No investigation or commission under this chapter shall relieve any security agency or other employer of the duty to investigate and make its own determination of an applicant's suitability for employment as a special police officer.
All security agencies and employers have an affirmative duty to supervise special police officers in their employ, and any attempt at a contractual limitation of liability shall be null and void.
In all cases, the liability of the security agency or other employer for the acts of its employees shall be limited to those times when the employee is on duty and to those acts within the scope of the employee's assignment or employment.
Failure of a private detective agency or security agency to properly supervise the activities of its employees is grounds for denial or suspension of the agency's license.
Each special police officer applicant shall be required to pass a drug screening administered by the security agency or employer upon initial application and upon application for commission renewal.
Special police officers shall be subject to reasonable suspicion drug and alcohol testing by the security agency or employer.
Security officer agencies or employers shall immediately notify the Mayor of any unexplained positive tests.
The commission of a special police officer who fails a reasonable suspicion drug or alcohol test shall be summarily revoked.
D.C. Mun. Regs. tit. 6, r. 6-A1106