BOULDER, CO (KUSA/NBC News) — Police and prosecutors in Boulder, Colorado are planning a new round of DNA tests on key evidence in the unsolved 1996 murder of 6-year-old Jon Benet Ramsey.

The move comes in the wake of a joint investigation by NBC affiliate KUSA and the Boulder Daily Camera that uncovered serious flaws in the interpretation of previous DNA testing on the panties and long johns the girl was wearing when she was killed late on Christmas night in 1996, or early the next morning.

Boulder County District Attorney Stan Garnett and Boulder Police Chief Greg Testa both confirmed Tuesday that they and members of their staffs recently discussed the issue with Colorado Bureau of Investigation administrators, who are on the verge of unveiling new, more sophisticated DNA tests than their lab has ever used before.

We should be doing all reasonable testing that we can do, and we will be,” Garnett said.

The testing would be conducted with new, more sensitive “kits” required of crime labs by the FBI’s Combined DNA Index System, the database that includes genetic profiles from more than 15.1 million known offenders and arrestees and more than 738,000 unsolved cases.

The murder of JonBenét roared into the national consciousness within days of the discovery of her body Dec. 26, 1996, in the sprawling Boulder home she shared with her parents and brother. The 6-year-old’s skull was fractured by a blow to the head, and her killer cinched a garrote around her neck, placed duct tape over her mouth and bound her wrists.

Opinion among investigators and the public has split over whether the child might have been killed by a family member or by an intruder, and two decades later, the search for the truth continues.Read more on the investigation from KUSA.