Office of the
District Attorney
Alameda County
Nancy E. O'Malley, District Attorney

Meet the District Attorney

The Alameda County Board of Supervisors appointed Nancy E. O’Malley as District Attorney of Alameda County on September 18, 2009. She was sworn in as the County's first female elected District Attorney on January 3, 2011.

Ms. O’Malley has been an attorney in the District Attorney’s office since 1984, and has held the position of Chief Assistant District Attorney since 1999. During her career in the office, Ms. O’Malley has served in many supervisory roles. She was the head of the Sexual Assault Unit, the leader of a Felony Trial Team as well as the Felony Preliminary Hearing Unit, the assistant team leader of the Law and Motion Department, and an Assistant Branch Head of the DA’s Office at the Wiley Manuel Courthouse in Oakland.

Ms. O’Malley has also prosecuted hundreds of felony matters ranging from child sexual assault to domestic violence and murder. In her most recent jury trial, she obtained convictions against Jared Adams, who was charged with multiple felonies stemming from a crime spree that included attempted murder, robbery of a gas station and carjacking. During the robbery of the gas station, he shot and paralyzed a 10-year-old Oakland boy who was taking a piano lesson in a neighboring music school. After the trial, Ms. O’Malley secured a 70-year prison sentence for Adams.

Ms. O’Malley is a nationally recognized expert in the advancement of Victims’ Rights. She also has national and statewide recognition as an expert in areas including Violence Against Women and interpersonal violence, including sexual assault, domestic violence, elder abuse, child abuse, stalking/threat management. She is an expert in ethics and discovery and has written statewide protocols in those areas.

Ms. O’Malley has produced numerous training programs and has written several legal articles related to child physical and sexual abuse, and violence against women. She serves as the Technical Advisor for the Sexual Assault Training through the California District Attorney’s Association (CDAA) and produced the first statewide Symposium on Violence Against Women. She has produced three statewide 3R Conferences which addresses issues affecting teens, particularly sexual assault of teens.

In 2004, Ms. O’Malley was inducted into the Alameda County Women’s Hall of Fame, Justice Category. In 1998, she was honored by the California Senate with the Woman of the Year award for her leadership in ending Violence Against Women and for her legislative contributions.

Ms. O’Malley was a member of the collaborative who created the Statewide Strategic Plan for ending Sexual Violence in California. She is Chair of the CDAA Sexual Assault Committee and serves on the Domestic Violence, Elder Abuse and Victim’s Rights Committees.

Ms. O’Malley has written several bills which have been signed into law, including the expansion of protections for victims of Sexual Assault, Domestic Violence, Stalking, Elder Abuse as well as stronger protections for child victims and crime victims with disabilities. She serves as both a National and Statewide consultant to Legislators on pending legislation, including issues of Victim’s Rights, Violence Against Women, and Sentencing.

Under Ms. O’Malley’s leadership and vision, Alameda County opened the Alameda County Family Justice Center, a one-stop shop for victims of family violence, sexual assault, elder abuse and child abuse. The ACFJC is a model throughout the country.

Ms. O’Malley is the past President of the California Women Lawyers.