বিভিন্ন গোয়েন্দা সংস্থা: - বাংলাদেশ: National Security Intelligence (NSI), Criminal Investigation Department (CID), Detective Branch (DB). - ভারত: Research and Analysis Wing (RAW), Central Bureau of Investigation (CBI). - পাকিস্তান: Inter-Services Intelligence (ISI), Federal Investigation Agency (FIA). - রাশিয়া: Federal Security Service (FSB). - ব্রিটেন: SIS/MI6 - Secret Intelligence Service (SIS) and Military Intelligence, Section 6 (MI6). - ইসরায়েল: MOSSAD, Shin Bet (Shabak), Aman. - ইরান: SAVAK.