The group, led by Dwight Mitchell, a father who says his son was illegally taken from him for 22 months, first filed a civil rights complaint in April, and this week they vocally publicized their call to shut down the child services agency, which they claim engages in systemic lying, withholding information, and fabricating evidence. They are asking the federal court to suspend the state’s agency from enforcing child protection laws, and according to a petition signed by almost 5,000 people, are also demanding changes to the laws themselves.