Metodieva notes that the humanitarian aid of the Islamic organisation was linked to the growth of the Salafist communities in Bosnia and Herzegovina.

[8] Along with Nusret Imamović, Barčić became one of the principal leaders of the neo-Salafist community that sought to challenge the traditional Islamic order in Bosnia and Herzegovina.

[8][10][11] Barčić, a charismatic figure with Saudi educational background, was committed to the mujahideen ideology and refuted the legitimacy of the secular institutions,[8][11] and worked to create a parallel society based on Sharia law.

[14] In the following years, the Islamic community was mostly dormant about Salafists' intrusion into mosques, schools, and cultural centres and began to confront them directly in 2007.

In February 2007, Barčić and his followers tried to enter the Gazi Husrev-beg Mosque, seen by many Bosnian Muslims as the central institution of their religious life.

[15] Anes Alic thinks that the organiser of the mosque takeover wasn't Barčić but his associate Karray Kamel bin Ali, better known as Abu Hamza, a Tunisian who acquired Bosnian citizenship.

[16] Known as a reckless driver who disregarded all civil authority, Barčić sustained serious injuries after losing control of his vehicle and hitting a lamp post near Tuzla around 2:00 a.m. on 30 March 2007.

[21] Robert Donia, associate professor of history at the University of Sarajevo, has noted: "Barčić’s truncated career as a Wahhabist gadfly thus evoked a greater response on his death than during his life and served mainly to bring Wahhabism sharply into public focus.