Generally, a social worker is employed by state or local governments and carries an average case load of 16 to 25 cases, which makes a comprehensive investigation of each case a challenge. A CASA volunteer, however, is assigned specifically to a child or sibling group and can devote more time to his or her assigned case. A CASA does not replace a social worker on a case; he or she is an independent appointee of the court. A CASA thoroughly examines a child’s case, knows about various community resources, and makes recommendations to the Court independent of state agency restrictions.