Colorado ? The slaying of JonBenet Ramsey will be investigated as a cold case with all evidence and actions taken 12 years ago reviewed anew, the Boulder police chief said Monday as the department resumed a probe for which it had long been criticized.

Chief Mark Beckner said new technology gives investigators tools they didn’t have a decade ago; the 6-year-old beauty pageant contestant was found bludgeoned and strangled in the basement of her Boulder home in 1996.

Police had transferred the probe to the district attorney’s office six years ago amid criticism of how the case was handled.

“We’d love to solve this case for JonBenet so she can rest in peace,” Beckner said at a news conference announcing the shift.

Police will handle the investigation as a cold case, “reviewing everything that’s been done, the evidence that’s been collected, trying to determine where do we go from here,” he said.

As a cold case, the investigation won’t have a full team of detectives working around-the-clock, the chief said.

“It’s going to be an as-we-can type of thing, or as needed,” he said.