A-l intelligence source

all-source intelligence

open source intelligence (OSINT)

web-enabled open-source intelligence

Geospatial Open Source Intelligence (GEOSINT)

Secret Intelligence Service (SIS) / Military Intelligence, Section 6 (MI6)

tactical intelligence / combat intelligence

undeclared member of the intelligence or counter-intelligence agencies

Defence intelligence of Ukraine (DIU) / Main Directorate of Intelligence of the MoD of Ukraine

all-source analysis system

all-source production

heat-source target

human source

open-source information

radioactive source

source data

source of information

water source

be backed up by open source analysis

confirmed credibility of the source of the material

credibility of the source of the material

unidentified source (u/i)

HUMINT source

influence source

inspection at source

surface source

density of a surface source

double source

double surface source

eliminate danger source

linear source

negative source

noise reduction at source