The reason for his arrest is that he brought a canister of gasoline with him to the protests. The protestors said that he carried this gasoline with him for a sound system that is being used during the protests.
During police questioning, causes for his detainment were not determined, and so Almir was let go.
The protestors consider this arrest as one in a series of pressures on them, and said that the sound system was filled the previous day as well, when there were no problems.
(Source: klix.ba)