LANCASTER, Ohio (AP) — An investigation into the legally required collection of DNA from adults arrested for felonies or convicted of some misdemeanors in Ohio shows thousands of DNA profiles missing from state and national crime databases.

The Lancaster Eagle-Gazette — part of the USA Today Network-Ohio — reports missing profiles include those for people accused of rape and other violent crimes. The network’s investigation shows some police agencies and courts are failing to collect the DNA profiles.

DNA information collected from people convicted of violent crimes and other offenses are uploaded to Ohio’s DNA system and shared with the FBI database so it can be searched against evidence in unsolved crimes.

The newspaper reports the total number of missing DNA profiles is unknown, but the investigation found several widespread collection gaps.