He remains a member of the board's executive committee and chairman of its finance committee.

Today he is a member of the Polish Senate and chairman of its defense committee.

He was a member of the National Science Board from 1960-64 and chairman from 1964-66.

He was a member of the National Assembly from 1945 to 1954 and chairman of its foreign relations committee from 1952 to 1954.

He was also a member of the local council and chairman of the hospital board.

Rocker became a member of the strike committee and chairman of the finance sub-committee.

He was a member of the board from the start, vice chairman from 1970 and then chairman from 1973 to 1974.

He retired as a member of the board and honorary chairman in 1993.

He was a member of the Diamond Dealers Club for almost 50 years and chairman of its arbitration board.

He became member of the board in 2000 and chairman in 2006.