Counter-Intelligence operations and counter-intelligence agents primary roles are not to engage the enemy, but to gather intelligence about the enemy.

Intelligence agencies operate their on schools for intelligence agents to provide them with knowledge and skill needed for covert work.

You need a good reference in government (parchee).

Contact the agency in which you are interested in working an ask them what their requirements or prerequisites are. Many intelligence services recruit their agents for other services.

Data gathering is a crucial form of Intelligence, without it agents would be powerless. The need for useful information often leads investigators to question suspects, informants and potentially knowledgeable citizens.

N. P. Padhy has written:

'Artificial intelligence and intelligent systems' -- subject(s): Artificial intelligence, Expert systems (Computer science), Intelligent agents (Computer software)