From the Associated Press:
The Colorado Bureau of Investigation is looking into whether the information in the ad came from the National Crime Information Center -- instead of from public records. Use of information from the NCIC, for any purpose other than law enforcement is a crime. Penalties include fines and up to a year in prison.
The TV ad refers to a suspected illegal immigrant who was arrested in Denver in 2001 on suspicion of heroin trafficking. The ad says that when Ritter was the district attorney for Denver, he chose to seek a plea bargain in the case, the man avoided deportation, and he was later arrested in California on suspicion of sexually assaulting a minor.
Watch the ad below: