Jimmy Hoffa Agreement. He played a major role in the growth and development of the union, which eventually became the largest (by membership) in the United States with over 2.3 million members at its peak, during his terms as its leader. Hoffa became involved with organized crime from the early years of his Teamsters work, and this connection continued until his disappearance in 1975. He was convicted of jury tampering, attempted bribery and fraud in 1964, in two separate trials. He was imprisoned in 1967 and sentenced to 13 years. In mid-1971, he resigned as president of the union as part of
Prospect (trade union) Prospect (trade union) Prospect is a United Kingdom trade union which represents engineers, managers, scientists and other specialists in both the public and private sectors. The union was formed on 1 November 2001 by the merger of the Institution of Professionals Managers and Specialists (IPMS) and the Engineers and Managers Association (EMA). In 2009, Prospect endorsed a transfer of engagements from the Connect union, the union for managers in the communications sector, which became a part of Prospect on 1 January 2010. In 2012, the union absorbed the Aspect trade union. In January 2017 the broadcasting union BECTU merged with