List of intelligence gathering disciplines

Intelligence Gathering Disciplines

HUMINT

Human Intelligence - gathered from a person on the ground.
*Espionage.
* Friendly accredited diplomats
* Military attaches
* Patrolling (Military police, patrols, etc)
*Non-governmental organizations (NGOs)
* Prisoners of war (POW's) or detainees
*Refugees
* Strategic reconnaissance, as by Special Forces
* Traveler debriefing(e.g., CIA Domestic Contact Service)

GEOINT

Geospatial Intelligence - gathered from satellite, aerial photography, mapping/terrain data
*IMINT - Imagery Intelligence - gathered from satellite and aerial photography

MASINT

Measurement and Signature Intelligence
*Electro-optical MASINT
** Airborne Electro-Optical Missile Tracking MASINT
** Tactical Countermortar Sensors
** Infrared MASINT
** Airborne Electro-Optical Missile Tracking MASINT
** Optical Measurement of Nuclear Explosions
** LASER MASINT
** Spectroscopic MASINT
** Hyperspectral Imagery MASINT
** Space-based Staring Infrared Sensors
*Nuclear MASINT
** Radiation survey and dosimetry
** Space-based Nuclear Energy Detection
** Effects of Ionizing Radiation on materials
*Geophysical MASINT
** Weather and Sea Intelligence MASINT
** Acoustic MASINT (also known as ACOUSTINT- Acoustic phenomena)
** Seismic MASINT
** Magnetic MASINT
** Gravitimetric MASINT
*Radar MASINT
** Line-of-Sight Radar MASINT
** Synthetic aperture radar (SAR) and Inverse Synthetic Aperture Radar (ISAR) MASINT
** Non-Cooperative Target Recognition
** Multistatic Radar MASINT
** Passive Covert Radar
*Materials MASINT
**Chemical Materials MASINT
**Biological Materials MASINT
**Nuclear test analysis
*Radiofrequency MASINT
** Frequency Domain MASINT
** Electromagnetic Pulse MASINT
** Unintentional Radiation MASINT

OSINT

Open Source Intelligence - gathered from open sources

SIGINT

Signals Intelligence - gathered from interception of signals
*COMINT - Communications Intelligence
*ELINT - Electronic Intelligence - gathered from non-communications electronic emissions
**FISINT - Foreign Instrumentation Signals Intelligence
***TELINT - Telemetry Intelligence - the collection and analysis of telemetry data from the target's missile or sometimes from aircraft tests.

TECHINT

Technical Intelligence - gathered from analysis of weapons and equipment used by the armed forces of foreign nations, or environmental conditions.
*MEDINT Medical Intelligence - gathered from analysis of medical records and/or actual physiological examinations to determine health and/or particular ailments/allergetic conditions for exploitation.

FININT

Financial Intelligence - gathered from analysis of monetary transactions

ee also

*Cryptanalysis
*Spy satellite
*TEMPEST
*Traffic analysis