Iowa Code § 600.2: Definitions.

1. “Adoption service provider”, “adult”, “agency”, “biological parent”, “certified adoption investigator”, “child”, “court”, “custodian”, “department”, “guardian”, “guardian ad litem”, “juvenile court”, “minor”, “parent”, “parent-child relationship”, “stepparent”, and “termination of parental rights” mean the same as defined in section 600A.2.

2. “Investigator” means a natural person who is certified or approved by the department, after inspection by the department of inspections, appeals, and licensing, as being capable of conducting an investigation under section 600.8.