One sixth of the Corpus Juris Civilis in the "Digest" consists of Paulus’ work. He is the most excerpted Roman jurist in the "Digest", ahead of Ulpian. The "Digest" attributes to Paulus the first articulation of the presumption of innocence in Roman law: "Ei incumbit probatio qui dicit, non qui negat""Proof lies on him who asserts, not on him who denies". Paulus in the "Digest" is also referred in two passages, which he gave a contrary opinion to Alexander Severus, but Severus chose Papinianus‘ opinion.