Very near the Tippit crime scene, Oswald was seen entering a carpark and his jacket was found under a car, the jacket was initialled by various law officers and the FBI forensic examiner, to maintain a chain of custody.
The jacket was filmed at the scene and this jacket was positively identified by his wife.

Stombaugh confirms his initials on evidence was designated by his initials PMS.
Mr. EISENBERG. "PMS" being your initials, Paul M. Stombaugh?
Mr. STOMBAUGH. Yes, sir.

Mr. RANKIN. 162?
Mrs. OSWALD. That is Lee's--an old shirt.
Mr. RANKIN. Sort of a jacket?
Mrs. OSWALD. Yes.
JohnM
Very near the Tippit crime scene, Oswald was seen entering a carpark and his jacket was found under a car, the jacket was initialled by various law officers and the FBI forensic examiner, to maintain a chain of custody. Lie # 1 and 2There was no chain of custody;
Mr. WESTBROOK. Yes; behind the Texaco service station, and some officer, I feel sure it was an officer, I still can't be positive pointed this jacket out to me and it was laying slightly under the rear of one of the cars.
Mr. BALL. What kind of a car was it?
Mr. WESTBROOK. That, I couldn't tell you. I told the officer to take the make and the license number.
Mr. BALL. Did you take the number yourself?
Mr. WESTBROOK. No.
Mr. BALL. What was the name of the officer?
Mr. WESTBROOK. I couldn't tell you that, sir.<>
Mr. WESTBROOK. Now, I did,
when I left this scene, I turned this jacket over to one of the officers and I went by that church, I think, and I think that would be on 10th Street.
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Mr. BALL. And you turned it over to whom?
Mr. WESTBROOK. Now, it was to this officer--that got the name.
Mr. BALL. Does your report show the name of the officer?
Mr. WESTBROOK. No, sir; it doesn't. When things like this happen--it was happening so fast you don't remember those things. And unknown and never identified officer finds a jacket and shows it to Westbrook who gives it to another unnamed officer isn't a chain of custody.
The people who marked the grey jacket did so at the police station and were never part of the chain of custody.
The jacket was filmed at the scene and this jacket was positively identified by his wifeLie # 3Marina identified the grey jacket that did indeed belong to Oswald. There is no evidence that the jacket found at the car park, described as white by several officers, was ever shown to Marina,