Following is from: Steve Thomas' book ,"Inside the Ramsey Murder Investigation", Kindle page 139...quoting Detective Steve Thomas:
"In early March Arndt had a private meeting with Patsy. She drove to the home of a Ramsey friend, where Patsy greeted her with a hug. Arndt reported that she took off her blazer and even lifted her sweater to prove to lawyer Patrick Burke that she wore no recording device and carried no police equipment whatsoever, not even a gun. We were enraged about the unauthorized visit, which Arndt termed "personal." Since we had been trying for so long without success to get formal interviews, any information would have been welcome, but when I asked what they talked about during the hour-long chat, she looked me in the eye" "I told Patsy our conversation would be in confidence. I can't tell you." "You're a detective, Arndt!" I protested. "You have a duty to give us that information."
"I can't tell you," she repeated and she never did.
What kind of cop does this?
Does anyone know what year this happened? Was it after the TV interview she did in which she pointedly remarked about John? If it was, maybe the TV interview was only part of a ruse to keep Patsy's secret protected, for which she might have even been handsomely rewarded?
IMO, the only kind of cop that would refuse to divulge any information she might have learned from Patsy that could identify the killer then and even up till now, is one who knows there can be no charges filed against the killer, and is allowing for a promise to Patsy to keep him protected for the rest of his life, unless he comes forth with the information himself: BURKE.
Patsy may have asked Arndt to give Burke an opportunity to continue to access psychological/medical help according to the needs the Ramsey family recognized he had, and if he appeared to be responding to treatment, give him a chance to have a life unencumbered by the public knowledge of his part in JonBenet's death.
After all, if Burke was the one who struck the head blow, the Ramseys did go to extreme lengths to protect him. Would it be unthinkable for a mother who was possibly preparing for her own death to think she could count on another female, who had the law intelligence needed as well, to understand how important it was to her to keep the secret?
No charges could be filed. John and Patsy were past the statute of limitations and if Patsy was the one who tied the ligature, she might have been able to convince Arndt the only way Burke stood a chance as a healed adult would be to keep the secret and never reveal that Patsy was the one who strangled her. Yes, Patsy could have faced charges, but with impending death, pretty pointless.
She could have asked Arndt to let the myth of the "intruder" and the attempted kidnapping stand as the alternate reality in Burke's mind, them having convinced Burke after the head blow that JB would be OK, putting him to bed, where he stayed until awakening to the frenzy of discovering JB's kidnapping.
Result: LA is able to fade into history, Burke has a chance to grow into adulthood as he heals, Patsy never has to look like a murderess in her son's eyes, John is able to continue his life towards faith building and have a chance to find his own recovery, also keeping his son's well-being front and center.