The untested rape kit numbers are part of a highly anticipated report the Minnesota Bureau of Criminal Apprehension released Thursday, more than three months after the Star Tribune requested the data.

The Legislature directed the BCA last spring to find out how many unprocessed kits are sitting at law enforcement agencies and why they weren't analyzed for DNA. It's the state's most comprehensive look at a backlog that has generated outrage across the country.

Many of the state's law enforcement agencies reporting having no untested kits. But 25 simply did not respond.

Nearly a quarter of that evidence is more than 10 years old.

So, why were the kits not tested? A variety of reasons. Here are the most common ones.