In this chapter: I. "Department" means the department of safety. II. "Division" means the division of state police, department of safety. III. "DNA" means deoxyribonucleic acid. IV. "DNA sample" means a blood, tissue, or hair follicle sample provided by any person or submitted to the division for analysis or storage or both. V. "Investigating agency" means the law enforcement agency that investigated a case resulting in a conviction in which biological material was collected as evidence during the course of the investigation.