Final answer:
Yes, coaching witnesses at lineups violates the suspect's Due Process rights as it risks undermining the fairness and reliability of the identification process, which is integral to upholding constitutional protections established by critical cases such as Miranda v. Arizona.
Step-by-step explanation:
Coaching witnesses at lineups does indeed violate the suspect's Due Process rights. This is because any form of coaching could lead to suggesting specific responses or biases, which can in turn influence the witness's independent recollection of the suspect.
The courts are obligated to ensure that the process is fair and that the rights of the individual accused of a crime are balanced with the rights of the victims. Significant cases like Miranda v. Arizona have established the requirement for police to inform suspects of their rights, specifically the right to counsel and against self-incrimination before interrogating them.
Similarly, the due process requirement extends to the conduct of lineups, and the administration of these must be neutral to avoid any potential for suggesting a particular outcome and compromising the reliability of the identification process.