Purpose: The first Elder Abuse Forensic Center (EAFC) in the United States was instituted in 2003. People from a variety of disciplines, including Adult Protective Services social workers, law enforcement, the district attorney's office, a medical response team, public guardian deputies, ombudsmen, mental health services, a victim advocate, and a domestic violence expert work cooperatively on cases of elder and dependent-adult mistreatment. Researchers conducted an assessment of the EAFC's impact on the efficiency and effectiveness of the collaboration. Design and Methods: Mixed quantitative and qualitative methods included statistical analysis of data from outcome surveys of EAFC collaborators and illustrative case studies developed from case files and structured interviews. Results: Mean survey scores evaluating the efficiency and effectiveness of the collaboration were significantly better than neutral responses. Case studies show efficient and effective case management through cooperation of the collaborating agencies. Survey results clearly support perceptions exemplified in case studies. Implications: An EAFC enhances the efficiency and effectiveness of those who address elder abuse in one community, which in turn leads to improved outcomes. Continued analysis to identify strengths, weaknesses, and cost effectiveness of the EAFC model is ongoing. (Contains 2 figures and 5 tables.)