Cal. Family Code § 8543 : California Family Code — Adoption — Qualified court investigator Date: 7 Sep 2016 TEXT PDF Current through the 2016 Legislative Session "Qualified court investigator" means a superior court investigator with the same minimum qualifications as a probation officer or county welfare worker designated to conduct stepparent adoption investigations in stepparent adoption proceedings and proceedings to declare a minor free from parental custody and control. Ca. Fam. Code § 8543