This feature issue of "Impact" focuses on persons with developmental disabilities and the justice system. Articles include: "The Invisible Victims" (Daniel D. Sorensen), which discusses the high rate of people with developmental and other severe disabilities who become victims of crime; "The ADA in the Justice System" (Frank Laski and Kirsten Keefe), which discusses the application of the Americans with Disabilities Act to the justice system to prevent discrimination against people with disabilities; "ABA Mental Health Standards: The Impact on Persons with Developmental Disabilities" (B.J. George), which summarizes the American Bar Association's mental health standards; "Equal Protection of the Law for Crime Victims with Developmental Disabilities" (Dick Sobsey); "The Arc: Tackling Criminal Justice Issues at National, State and Local Levels" (Leigh Ann Reynolds and Rick Berkobien); "Breaking the Cycle: 'Justice Now!'" (Jeri Houchins), which describes a program that works to prevent discriminatory treatment of people with developmental disabilities in the criminal justice system; "Educating for Change: 'Equal Justice'" (Lisa Sonneborn), which highlights a program designed to support people with mental retardation who encounter the criminal justice system as victims of crime or as people accused of crimes; "Defending and Advocating on Behalf of Individuals with 'Mild' Mental Retardation in the Criminal Justice System" (William M. Edwards and Leigh Ann Reynolds); "The Expert Witness: Issues of Competence, Criminal Justice, and Mental Retardation" (Denis W. Keyes); "The Bewildering Life of Richard Lapointe" (Robert Perske), which details the story of a man with disabilities accused of murdering a grandmother; "Challenging Stereotypes and Ignorance: The San Francisco Police Department" (Forrest Fulton); "Being There: The Role of Advocates" (Dolores Norley); "Communicating with People Who Have Cognitive Disabilities" (Mary F. Hayden), which discusses factors that need to be considered in communicating with people with cognitive disabilities within the context of the justice system; "Pueblo DD/MH Consortium Diversionary Program" (Larry Velasco); and "The Education of Juveniles in the Criminal Justice System: A Mandate?" (Barbara E. Ransom and John Chimarusti). A list of relevant additional resources is provided. (Most articles contain references.) (CR)