The capabilities of a non-lethal weapon (NLW) are its potential to successfully execute certain operational task. Non-lethal hand grenades are amongst the most used means for influence on people in any kind of missions and various operational contexts. This paper presents results of studies on the capabilities of seven types of hand grenades with different effects or combinations of effects developed and produced at the Institute of Metal Science, Equipment and Technologies (IMSETHAC-BAS). The capabilities assessment covers 14 operational tasks in which non-lethal grenades could be applied. Obtained results are compared to capabilities of highest evaluated current/programmed NLWs of leading NATO countries producers.