A lawyer known as her "bullet-proof vest" is on former South Korean president Park Geun-hye's legal team. So are two failed candidates for parliament from her ruling party.

Park has turned to a group of loyalists for her legal defense as she faces questioning on Tuesday from prosecutors as a criminal suspect in a widening corruption probe that has already cost her the presidency.

Her legal lineup is a stark contrast to the star-studded team assembled by Samsung Group head, Jay Y. Lee, who is on trial on charges of bribing Park. They include high-powered former prosecutors now with one of the country's top law firms, Bae, Kim & Lee, known for its litigation expertise.