Few data on stress symptoms related to the World Trade Center disaster in law enforcement personnel have been reported. Most New York City Police Department (NYPD) officers had significant exposure to the events of Sept. 11, 2001. Approximately 5,000 officers responded within the first 2 days, and more than 25,000 officers worked at ground zero, the morgues, or the Staten Island landfill. Because the police are the first line of defense against terrorist attacks, it is imperative that they maintain optimal health and functioning. Concern for the long-term effects from traumatic exposure is warranted. In partnership with Project Liberty, peer officers and clinicians from the Police Organization Providing Peer Assistance performed outreach, support work, and screening for stress symptoms related to the disaster in the NYPD from December 2002 until December 2003. Psychological issues in law enforcement personnel, a description of the outreach program, and data from these screenings are presented.