Mauricio Tusk (SEY 2499 - 2551) was a law enforcement officer who served in the Advocacy from 2524 to 2541 and then as High-Advocate of the United Planets of Earth (UPE) from 2541 to 2546. He and High-Secretary Janis Rezaian publicly criticized then High-General Ivar Messer for his refusal to compromise with his fellow Tribunal members.
In 2546, after Messer was elected as Prime Citizen, he was removed from office when the Tribunal was dismantled. Tusk returned to the Advocacy in 2547. He was killed in action in 2551 while performing a high-risk extraction.