CASE/SCENARIO

You are a victim advocate. You have been assigned Virginia Sufferer as your first person to guide through the criminal justice process from beginning through trial. She was the victim of an alleged burglary at her place of residence. Defendant Accused was arrested by warrant after Sufferer picked him out of a line up after seeing him leaving her apartment on the day of the burglary. Accused was known to the police for his prior arrests and convictions for the sale of narcotics. Police searched his home when they served the arrest warrant and found two pieces of jewelry that belonged to Sufferer. Accused was interrogated at the police station and did not admit to the crime. When questioning began at the police station, Accused asked to speak to a lawyer, but no attorney was provided. The case is in USA.

What are the constitutional protections that Accused's lawyer may be able to use as a defense at each stage of the proceeding?