The chain of custody is what actually occurred with an item of evidence: Officer A picked it up at the scene, retained possession until handing it to Officer B, who retained possession before handing it to Detective C, who delivered it to Officer D who was in charge of the evidence room and who logged it in. If, in the heat of a chaotic event, Officer A writes a report stating that he handed it to Officer X, this is not a "defect in the chain of custody." It is a discrepancy between what Officer A did and what he wrote. If Officer B testifies "No, he handed it to me," Officer X testifies he didn't receive it, and Officer A agrees he erred in writing his report, there is no defect in the chain of custody (except in Conspiracy World, of course, where all three officers are obviously lying).
I just happened to be reading Secret Service Agent Donald Burke's report of 11-23-63 detailing the retrieval of the Postal Money Order from the National Archives and Record Services federal records center in Alexandria, VA on that date. The report details the extreme care the National Archives official, Postal official and Secret Service officials took to establish a rock-solid chain of custody from the records center to the safe at the Secret Service office. It's wonderful when that occurs, but it doesn't always occur and it isn't necessarily fatal when it doesn't (except in Conspiracy World).
Here is the basic idea from an Illinois case involving seized cocaine:
"The court in Woods noted the State bears the burden of showing a chain of custody sufficiently complete to make it improbable the evidence has been subject to tampering or substitution by showing the police took reasonable protective measures to ensure the substance recovered was the same as the substance tested. Unless a defendant produces evidence of actual tampering, substitution, or contamination, a sufficiently complete chain of custody does not require every person in the chain to testify. Woods, 214 Ill. 2d at 467, 828 N.E.2d at 255. Deficiencies in a chain of custody go to the weight and not the admissibility of evidence. Even where a link is missing in a chain of custody, the evidence is properly admitted where testimony sufficiently described the condition of the evidence when delivered which matched the description of the evidence when examined. Woods, 214 Ill. 2d at 467-68, 828 N.E.2d at 255."
"If, in the heat of a chaotic event, Officer A writes a report stating that he handed it to Officer X, this is not a "defect in the chain of custody." It is a discrepancy between what Officer A did and what he wrote. If Officer B testifies "No, he handed it to me," Officer X testifies he didn't receive it, and Officer A agrees he erred in writing his report, there is no defect in the chain of custody."That's a lovely story.
Why don't we have a look at some actual evidence from the actual case and see what you make of it.
The idea that two men can be shot through by a single bullet is not controversial.
Neither is the idea that a shot from the Sniper's Nest passing through JFK must hit JBC (even Royell's beloved Knotts Lab shows this must be the case)
In principle the Single Bullet Theory is not a controversial one.
The real problem with it is the insistence that CE399 was the bullet that passed through both men. Considering the amount of damage done, in particular the shattering of JBC's wrist bone, and the relatively "pristine" nature of the bullet, it is very difficult for many to accept that this was the bullet involved.
Even more problematic was the nature of it's discovery and the subsequent handling of this vital piece of evidence.
Darrell Tomlinson discovered a bullet on a stretcher in a corridor of Parkland hospital. He was unsure what to do about it until a hospital manager and retired police officer, O P Wright came by. Tomlinson drew Wright's attention to the bullet. Wright knew what to do and he searched around until he found Secret Service agent Richard Johnsen and gave him the bullet explaining where it was found.
Up to this point we cannot expect a chain of custody as Tomlinson and Wright are civilians but we would expect them to be asked to identify the bullet at a later date.
Johnsen travels to Washington with the bullet where he hands it to the Chief of the Secret Service James Rowley who then hands the bullet to FBI agent Elmer Todd who takes it to the FBI lab in Washington where it is handed to FBI firearms expert Robert Frazier.
Tomlinson - Wright - Johnsen - Rowley - Todd - Frazier
The Warren Commission asked the FBI in May 1964 to attempt to authenticate the chain of possession of various items of evidence, including Commission Exhibit 399. Although Todd and Frazier had both initialed CE399, Johnsen and Rowley had neglected to do so. There was no record of the chain of custody before CE399 was given to Todd.
It was Todd, the agent who had received the bullet from Rowley, who showed the CE399 to Rowley, Johnsen, Wright and Tomilinson.
All four men refused to identify CE399 as the bullet they handled that day.
The only people who do positively identify the bullet are the same men who initialed it - Todd and Frazier.
Considering the monumental importance of this piece of evidence it is noteworthy that neither Johnsen nor Wright are called before the Warren Commission.
Rowley testifies but is not asked about CE399.
Unbelievably, Tomlinson, the man who initially discovered the bullet, is asked to give evidence but is not asked a single question about the bullet itself. He is not asked to describe it, he is not shown it so he can confirm it is the same bullet, he is not even shown a picture of it.
In your capacity as a lawyer how does this stack up in terms of a chain of custody?