The representatives of each did not collaborate with each other before submitting timely reports. The DPD chief and the FBI were openly hostile to each other. The DPD and SS were most defensive while Postal Inspector Harry Holmes seemed to have little exposure to the accusation of failing to protect the President during his visit to Dallas.
And yet their accounts of interrogating Oswald still come out fairly similar with reports of him denying owning the rifle, failing to authenticate the backyard photo, etc, etc.
This would suggest to me one of the following three occurrences happened then:
a) All the representatives collaborated with each other before submitting their reports (which you claim they did not)
b) They each decided to tell lies about what Oswald said and by sheer pot luck, coincidentally told the same lies as the other investigative departments
c) It is actually what Oswald said
My personal opinion is that it's more likely to be C.
Obviously this does not prove or disprove Oswald's guilt and I'm not addressing whether the President's body was illegally taken at gunpoint, whether it differed from McKinely's assassination or even whether Woody Harrelson's old man was disguised as a tramp on the grassy knoll and shot JFK himself. Once again, the question I was merely asking to all those people who lazily state that because there are no recordings of these interviews that everything stated in the reports are obviously all lies, was why would they lie about it and why chose to lie and say he denied everything if they could have just said that he admitted to everything once he was dead?