The Canada Border Services Agency (CBSA) is a federal law enforcement agency that is responsible for border enforcement

Border control

Border controls are measures used by a country to monitor or regulate its borders.The control of the flow of many people, animals and goods across a border may be controlled by government Customs services. Security is enforced by various kinds of Border Guards and Coast Guards...

, immigration enforcement and customs

Customs

Customs is an authority or agency in a country responsible for collecting and safeguarding customs duties and for controlling the flow of goods including animals, transports, personal effects and hazardous items in and out of a country...

 services.
The Agency was created on December 12, 2003 (the same day Paul Martin

Paul Martin

Paul Edgar Philippe Martin, PC , also known as Paul Martin, Jr. is a Canadian politician who was the 21st Prime Minister of Canada, as well as leader of the Liberal Party of Canada....

 became Prime Minister of Canada

Prime Minister of Canada

The Prime Minister of Canada is the primary minister of the Crown, chairman of the Cabinet, and thus head of government for Canada, charged with advising the Canadian monarch or viceroy on the exercise of the executive powers vested in them by the constitution...

), by an order-in-council

Order-in-Council

An Order in Council is a type of legislation in many countries, typically those in the Commonwealth of Nations. In the United Kingdom this legislation is formally made in the name of the Queen by the Privy Council , but in other countries the terminology may vary.-Assent:Although the Orders are...

 amalgamating Canada Customs (from the now-defunct Canada Customs and Revenue Agency

Canada Customs and Revenue Agency

Canada Customs and Revenue Agency was a department of the government of Canada and existed from November 1, 1999 until December 12, 2003. It was created from the merging of the Department of National Revenue with Canada Customs....

) with border and enforcement personnel from the Department of Citizenship and Immigration Canada

Citizenship and Immigration Canada

Citizenship and Immigration Canada is the department of the government of Canada with responsibility for issues dealing with immigration and citizenship...

 (CIC) and the Canadian Food Inspection Agency

Canadian Food Inspection Agency

The Canadian Food Inspection Agency is a science based regulatory agency that is dedicated to the safeguarding of food, animals, and plants, which enhance the health and well-being of Canada's people, environment and economy...

 (CFIA).