The Service for Investigations and Documentation (Serbian: Služba za Istrage i Dokumentaciju; SID) was the foreign intelligence agency of Serbia that deals with intelligence gathering and other security activities relating to terrorism.
It was under authority of Foreign Ministry with headquarters in Belgrade, Serbia. On 11 December 2007 has adopted new Law on security and intelligence services of Republic of Serbia, where are determined three security and intelligence agencies of the Republic. The three existing are: BIA (Security Information Agency), VOA (Military Intelligence Agency) and VBA (Military Security Agency). Other two, Service for Investigations and Documentation was planned to be dissolved and partly reorganised into Department for Analytic and Support (Serbian: Odeljenje za Analitiku i Podršku) up to 2010 and Security Service of Foreign Ministry is now Department within Ministry responsible just for technical security of Ministry buildings and officers.
- Ministry of Foreign Affairs, () official site in Serbian
- Ministry of Foreign Affairs, () official site in English
- Law on security and intelligence services of Republic of Serbia () Serbian