Question: What did the man whose cabinet Thomas Walsh joined as Minister for Agriculture lead the introduction of?

Context paragraphs:
Thomas Walsh: Thomas Walsh, Tom Walsh or Tommy Walsh may refer to:

Viljami Kalliokoski: Viljami Kalliokoski (15 May 1894, in Halsua – 20 January 1978) was a Finnish farmer and politician.  He was a member of the Agrarian League.  He served as Deputy minister of Agriculture in Kyösti Kallio's fourth cabinet (7 October 1936 - 12 March 1937) and as Minister of Agriculture in Risto Ryti's second cabinet (15 August 1940 - 4 January 1941), in Jukka Rangell's cabinet (4 January 1941 - 5 March 1943), in Edwin Linkomies' cabinet (5 March 1943 - 8 August 1944), in Antti Hackzell's cabinet (8 August 1944 - 21 September 1944), in Urho Castrén's cabinet (21 September 1944 - 17 November 1944), in Ralf Törngren's cabinet (5 May 1954 - 20 October 1954) and in Urho Kekkonen's fifth cabinet (20 October 1954 - 3 March 1956) as well as a Member of Parliament (5 September 1922 - 5 April 1945 and 22 July 1948 - 19 February 1962).

Thomas Walsh (Irish politician): Thomas Walsh (18 December 1901 – 14 July 1956) was an Irish Fianna Fáil politician.  He first stood for election at the 1943 general election for the Kilkenny constituency but was not successful.  He was subsequently elected to Seanad Éireann by the Agricultural Panel and served until 1944.  He was unsuccessful candidate at the 1944 general election but was elected to Dáil Éireann at the 1948 general election as a Fianna Fáil Teachta Dála (TD) for the Carlow–Kilkenny constituency.  In 1951 he joined the Cabinet of Éamon de Valera as Minister for Agriculture, serving in government on one occasion.  Walsh died suddenly in 1956 while still a member of the Dáil.  The subsequent by-election was won by the Fianna Fáil candidate Martin Medlar.

Walter Walsh: Colonel Walter Rudolph Walsh (May 4, 1907 – April 29, 2014) was an FBI agent, USMC shooting instructor and Olympic shooter.  Walsh joined the FBI in 1934, serving during the Public enemy era, and was involved in several high-profile FBI cases, including the capture of Arthur Barker and the killing of Al Brady.  He served in the Pacific theatre during World War II with the Marine Corps and, after a brief return to the FBI, served as a shooting instructor with the Marine Corps until his retirement in the 1970s.

Patrick Walsh (friar): Sir Patrick Walsh (fl.  1580 – c.1610) was an Irish ambassador and friar.  Patrick Walsh was a knight and wealthy merchant in the city of Waterford, becoming Mayor of Waterford in 1578.  He was an older half-brother of Thomas Walsh, Archbishop of Cashel 1626–54.  Another brother, Richard Walsh, was a Jesuit.  (1992, n. 28, p. 191).

Barnstorm (band): Barnstorm was the group created by Joe Walsh in Colorado after he left the James Gang.  The original members of the group were Walsh (guitars, keyboards), Joe Vitale (drums, flute, keyboards) and Kenny Passarelli (bass).  Walsh and Vitale had previously played together in an Akron-based band called The Measles before Walsh joined the James Gang.  All of the members contributed lead vocals and songs, although Walsh was the principal singer and songwriter.  Later, the group added keyboardists Rocke Grace and Tommy Stephenson.  Having two keyboardists permitted Barnstorm to play the complex arrangements live that it was creating through multitracking in the studio or through the use of session musicians such as Paul Harris (piano) and Joe Lala (percussion).

Éamon de Valera: Éamon de Valera ( ; ] ; first registered as George de Valero; changed some time before 1901 to Edward de Valera; 14 October 1882 – 29 August 1975) was a prominent politician and statesman in 20th-century Ireland.  His political career spanned over half a century, from 1917 to 1973; he served several terms as head of government and head of state.  He also led the introduction of the Constitution of Ireland.

Christian Paradis: Christian Paradis, PC (born January 1, 1974) is a Canadian politician who was the Conservative Member of Parliament in the Canadian House of Commons for Mégantic—L'Érable from 2006 to 2015.  He was first elected in the 2006 federal election and served as parliamentary secretary to the Minister of Natural Resources until January 4, 2007, when he was appointed Secretary of State for Agriculture and Agri-Food Canada and the Rural Secretariat.  On June 25, 2008, Paradis was appointed Minister of Public Works and Government Services, retaining his position as Secretary of State for Agriculture until October that same year.  On October 30, 2008, in a cabinet shuffle following the election, he retained the Public Works portfolio.  In addition, he succeeded Lawrence Cannon as Quebec Lieutenant.  On January 19, 2010, in a cabinet shuffle, Prime Minister Harper appointed him Minister of Natural Resources.  On May 18, 2011, in a cabinet shuffle he was appointed to be the Minister of Industry.  On July 15, 2013, in a cabinet shuffle, he was appointed as Minister of International Development and Minister for La Francophonie.

Minister of Agriculture and Land Affairs: The Minister of Agriculture and Land Affairs was, from 1996 to 2009, a Minister of the Cabinet of South Africa, with responsibility for the Departments of Agriculture and Land Affairs.  The portfolio was created in 1996 when the positions of Minister of Agriculture and Minister of Land Affairs were merged.  In the 2009 cabinet reorganization after the election of President Jacob Zuma, the portfolio's responsibilities were divided and transferred to the Minister of Agriculture, Forestry and Fisheries and the Minister of Rural Development and Land Reform.

You Can't Argue with a Sick Mind: You Can't Argue with a Sick Mind (subtitled "Recorded Live") is a live solo album by the American singer-songwriter and multi-instrumentalist Joe Walsh.  The album was released in early 1976, on the label ABC Records.  It was recorded live just before Walsh joined the Eagles, who also play on "Help Me Through the Night".  This was Walsh's first and final album to be released by ABC Records.  It was re-issued three years later by MCA Records in 1979.

Supporting paragraphs: Thomas Walsh (Irish politician) Éamon de Valera
Answer: Constitution of Ireland