Ric is using this because of what Wiley said but that’s also flimsy because those could have been Chase’s own keys Wiley saw him with. But here is some info I found on how chain of custody works:
Chain of Custody
The chain of custody begins on the crime scene with the investigator and the evidence recovery technician. If they fail to perform their duties as required then the chain of command is already broken and the evidence is considered contaminated. The exact definition for chain of command when it comes to evidence is the witnessed and written record of everyone who came in contact with the evidence and had unbroken control of it. Following the chain of command ensures that the evidence collected at the scene is the same evidence that is entered in the courtroom.
What Is Established By The Chain Of Custody?The chain of custody establishes the following important items in a criminal case:
*Who exactly came in contact with each piece of evidence
*The date and the time when the evidence was contacted
*The circumstances surrounding the contact with the evidence
*If any changes were made to the evidence