1964 CHAIN OF CUSTODY
Had Oswald went to trial in '64, in preparing for that trial, ADA Bill Alexander would have gone to the DPD and asked them, for example, who found the jacket. He would have been told that Capt. Westbrook found the jacket. Alexander then would have gone to Westbrook and asked Westbrook about the jacket. Westbrook would have told Alexander that he picked up the jacket from under one of the cars behind the Texaco station and then handed it to officer X. Then Alexander would have gone to officer X, who would have told Alexander that he received the jacket from Westbrook and then turned it in to Y at the crime lab.
These names would have been worked out had there been a trial. Alexander would have gotten a statement from officer X and Y. Then, officer X and Y, at an evidentiary hearing, would have been shown the jacket. X would have said he got that jacket from Westbrook. Y would have said he got the jacket from X. Had there been a trial, these names would have been put in place to show a chain of custody of the jacket.
Since there was no trial, Alexander, or anyone else, never saw fit to work it out. This is how it would have occurred in 1964. Then, while researching the case today and with Oswald having been put to death by the state of Texas, there would be no lack of a chain of custody for the jacket because one would have been presented at the evidentiary hearing. And at trial... the Defense would NOT bother with challenging a chain of custody of the jacket because one has already been established and the Defense also does not want the jury wondering why the Defense wants so badly to discount the jacket.
The same holds true with the four shell casings found at the scene and the revolver taken from Oswald when he was arrested which was linked to those four shell casings.