4.2 Facts which Need to Be Proved

4.2.1 Facts in issue: the case's success depends on them; the burden's residence (Unit 6) — they must be proved by the party whose case they carry; the pleadings' definition disciplines their scope (the unpleaded issue the unproved issue). 4.2.2 Relevant facts: the facts connected to the issues — the logical relevance: the causal (the motive, the opportunity, the preparation), the explanatory (the context, the background), the corroborative (the confirmation), the contradictory (the rebuttal). The admissibility's candidates: the Act's relevance catalogue — the motive, the opportunity, the intention, the conduct (the flight, the concealment), the explanations. The two-tier discipline (the unit's frame): the issues FIRST (what must be proved), the relevance SECOND (what may be proved toward them) — the relevant facts admissible though never compulsory (the case's strength's material, not the case's necessity).