More than 3,400 rape kits collected from victims were never tested and sit in law enforcement storage around Minnesota, with some kits dating to the early 1990s.
The tally represents the first hard numbers for Minnesota in a continuing national scandal over the neglect of evidence that could put rapists behind bars.
The state Department of Public Safety released the tally Wednesday following a Star Tribune data request, but couldn't provide detailed information because it's still analyzing the reports from local law enforcement agencies.
At the direction of the Legislature this past spring, the Department of Public Safety's Bureau of Criminal Apprehension (BCA) has been taking inventory of sexual assault evidence kits that were used but never analyzed for DNA, and asking why they weren't processed.
It's the first time the Legislature has required agencies to report untested rape kits, although efforts have been made in the past to learn about the numbers, said Public Safety spokeswoman Jill Oliveira.
Minnesota's new inventory law requires the BCA to submit a report to the state attorney general and legislative leaders by Dec. 1.
Oliveira said that 406 law enforcement agencies reported their inventories, for a total of 3,449 untested kits. That represents most of Minnesota's law enforcement agencies, she said.
"Initial assessment of the data shows that the vast majority of the reported kits exist within local law enforcement agencies, not in crime labs," Oliveira said.