In most cases voting operations include logistical preparations for election day, the conduct of special and regular voting, vote counting and tallying of the result. Critical aspects of voting operations include logistics and security related to the handling of electoral materials, the integrity and transparency of special and external (out-of-country) voting, real or perceived problems with the integrity of voting on election day, and the technical accuracy and credibility of counting and result tallying. If technical operations are executed poorly or in a way that can create perceptions that there has been manipulation and rigging of the result, the reactions can be violent.