Topicality of a subject-matter “Burden of proof: Procedural understanding of standard of proof” is based on ambiguous understanding of the standard of proof in legal practice, that is, of the moment when a fact is considered to be proven or unproven. Goal of an article is to research legal regulation of burden of proof in civil procedure, administrative 51ADMINISTRATĪVĀ UN KRIMINĀLĀ JUSTĪCIJA 2017 3 (80) procedure, administrative offence procedure and criminal procedure law and to determine standard of proof within each of these procedures. Burden of proof, or duty to prove claimed fact, is an essential element of any evidentiary proceedings. Determination of standard of proof is ambiguously understood issue in legal theory and especially i...