In Lawyers as Upholders of Human Dignity, Georgetown Law Professor and legal ethics guru David Luban explains how advancing and maintaining human dignity is a fundamental cornerstone of our profession. Indeed, it is “what makes the practice of law worthwhile.” Defining dignity as a “property of relationships between humans," Prof. Luban articulates how the right to legal representation in criminal cases neatly encapsulates the notion of the law as a defender of human dignity.
In US: must be an attorney licensed and in good standing in any state, territory or DC.
Outside US: must be a lawyer or equivalent (eg counselor, barrister, advocate, solicitor), duly educated and licensed/accredited and in good standing.
As a general rule, experienced and currently practicing lawyers, and those in the legal academy, are more likely to be admitted.