A more thorough explanation:

Definition: The link-in-chain principle is a criminal procedure principle that protects a defendant's Fifth Amendment right against self-incrimination. This principle not only protects the defendant from answering directly incriminating questions but also from giving answers that might connect the defendant to criminal activity in the chain of evidence.

Example: Suppose the police are investigating a robbery at a convenience store. During the investigation, they find a witness who saw a person matching the defendant's description leaving the store around the time of the robbery. The police then ask the defendant if they were at the convenience store on the day of the robbery. Even if the defendant did not commit the robbery, answering this question could connect them to the crime and violate their Fifth Amendment rights under the link-in-chain principle.

Explanation: The link-in-chain principle is designed to protect defendants from being indirectly incriminated by their own statements. In the example above, even if the defendant did not commit the robbery, admitting to being at the convenience store could link them to the crime and make them a suspect. By invoking their Fifth Amendment right against self-incrimination, the defendant can avoid giving any information that might connect them to the crime.