Final answer:
An attorney engaged in relief services on behalf of a client may be exempt from the ban on the collection of an advance fee if he meets certain conditions, such as providing legal assistance to a client who is accused of a serious crime and cannot afford to pay for legal representation.
Step-by-step explanation:
An attorney engaged in relief services on behalf of a client may be exempt from the ban on the collection of an advance fee if he meets certain conditions. One such condition is if the attorney is providing legal assistance to a client who is accused of a serious crime and cannot afford to pay for legal representation. This right to legal counsel is guaranteed by the Sixth Amendment of the United States Constitution. In the landmark case of Gideon v. Wainwright, the Supreme Court ruled that individuals accused of a serious crime have the right to an attorney, even if they cannot afford one.