| Investigation Led by Experts | |
|---|---|
 | |
| Also known as | Investigation Led by ZnaToKi |
| Starring | Georgy Martyniuk Leonid Kanevsky Elza Lezhdey |
| Country of origin | Soviet Union Russia |
| Original language | Russian |
| No. of episodes | 24 |
| Original release | |
| Release | 1971 – 2003 |
| Infobox instructions (only shown in preview) | |
Investigation Led by ZnaToKi, or Investigation Led by Experts (Russian: Следствие ведут ЗнаТоКи, translit. Sledstvie vedut ZnaToKi) was a popular 1971-1989 Soviet detective TV-series with two Russian series (2002 and 2003). Total episodes released — 24.
Main characters — investigator Pavel Znamenski, detective Alexandr Tomin and laboratory analyst Zinaida Kibrit were acting together under a group name ZnaToKi (translated as "Experts").
The song by Mark Minkov based on the lyrics Invisible Battle (Nezrimiy Boi - Our mission is both dangerous and difficult, and most invisible at first glance...) by Anatoly Gorokhov features in almost all series. It became an unofficial hymn of the Soviet Militia.[citation needed]