The Secretary of State for Wales is the head of the Wales Office

Wales Office

The Wales Office / Swyddfa Cymru is a United Kingdom government department. It replaced the former Welsh Office, which had extensive responsibility for governing Wales prior to Welsh devolution in 1999....

 within the British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 cabinet

Cabinet of the United Kingdom

The Cabinet of the United Kingdom is the collective decision-making body of Her Majesty's Government in the United Kingdom, composed of the Prime Minister and some 22 Cabinet Ministers, the most senior of the government ministers....

. He or she is responsible for ensuring Welsh

Wales

Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

 interests are taken into account by the government, representing the government within Wales and overseeing the passing of legislation

United Kingdom legislation

United Kingdom legislation derives from a number of different sources. The United Kingdom does not have a single body of legislation, but is divided into three jurisdictions, each with its own laws and legal system: England and Wales , Scotland , and Northern Ireland .-Parliament of the United...

 which is only for Wales. The current Secretary of State for Wales is Cheryl Gillan

Cheryl Gillan

Cheryl Elise Kendall Gillan is a British Conservative Party politician. She is currently the Secretary of State for Wales, and the Member of Parliament for the constituency of Chesham and Amersham in Buckinghamshire....

.
In the first half of the 20th century, a number of politicians had supported the creation of the post of Secretary of State for Wales as a step towards Home Rule

Home rule

Home rule is the power of a constituent part of a state to exercise such of the state's powers of governance within its own administrative area that have been devolved to it by the central government....

 for Wales.