TrustLine is an effective tool for parents to check the backgrounds of a caregivers, nannies, tutors and in-home counselors to determine if an applicant has criminal convictions or substantiated child abuse reports in California. TrustLine is the only background check authorized by state law to use three databases that the general public, including private investigators and private background check companies, cannot access. These databases include the fingerprint records from the California Department of Justice’s California Criminal History System; the Child Abuse Central Index of California; and fingerprint records of the FBI Criminal History System.