Child Protective Services receives reports and investigates situations of suspected child abuse and neglect in San Mateo County. Our staff consists of trained social workers who provide the following services to abused or neglected children from newborn to 18 years of age: Emergency Response Family Reunification Family Maintenance Permanent Placement Reporting Child Abuse If you know or suspect that a child is currently being abused, has been abused in the past, or is at risk of abuse call: 1-800-632-4615 or 650-595-7922 (24 hours daily) Or, contact your local police department.