Office for Foreign Relations and Information 

Each country has its own way for controlling its intelligence services. Generally, intelligence services can be in fact and according to law controlled by:

• the government (do the services do effectively what they are supposed to do?);
• the parliament (do the services do what they are not supposed to do?);
• courts;
• courts of auditors;
• the media and other informal factors.

Source: Petr Zeman - lectures, trainings and public speeches