Spain's CNI: The National Intelligence Centre Explained

The National Intelligence Centre (Centro Nacional de Inteligencia, CNI) is Spain's intelligence service. Unlike the British model, which splits domestic and foreign work between MI5 and MI6, the CNI covers both in a single organisation attached to the Ministry of Defence.

Key facts

Before the CNI: SECED and CESID

For much of the Franco era Spain had no unified intelligence service; military, police and party bodies each ran their own networks. In 1972 the regime created the Central Documentation Service (SECED), attached to the Prime Minister's office and focused on the political opposition and student unrest.

In 1977, during the transition to democracy, it was folded into the new Higher Defence Information Centre (CESID). For two decades CESID was the state's main service and also the subject of repeated scandal: questions over its role around the failed coup of 23 February 1981, illegal wiretapping exposed in 1995, and links to the 'dirty war' against ETA that ended up in court.

The 2002 laws

The reforms of 2002 were a response to that record. Law 11/2002 set up the CNI with defined functions tied to the annual Intelligence Directive approved by the government. Organic Law 2/2002 added a crucial safeguard: any operation that intrudes on the home or private communications needs prior approval from a Supreme Court judge.

What the CNI does

• Collects and analyses information on threats at home and abroad, including terrorism, organised crime, proliferation and foreign espionage.
• Counter-intelligence against foreign services operating in Spain.
• Protects classified information and government IT security through the National Cryptologic Centre.
• Provides strategic analysis to support government decisions.

The CNI is not a police force and its officers cannot make arrests; that falls to the National Police and the Guardia Civil.

Spain's other intelligence bodies

The Armed Forces Intelligence Centre (CIFAS), set up in 2004, handles military intelligence. The Intelligence Centre against Terrorism and Organised Crime (CITCO), under the Interior Ministry, coordinates police information, and both the National Police and the Guardia Civil keep their own intelligence branches.

Recent controversy

The best-known case broke in 2022, when reports revealed that phones belonging to Catalan pro-independence figures had been infected with Pegasus spyware. Director Paz Esteban told the parliamentary committee that some of the interceptions had judicial approval, and she was dismissed that May. The same month the government said the phones of the Prime Minister and several ministers had also been infected, without publicly attributing the attack.

The affair revived an old debate: whether judicial and parliamentary oversight is strong enough, and whether Spain's 1968 Official Secrets Law should finally be replaced.

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