This is the OCR-endorsed edition covering the Latin AS and A-Level (Group 1) prescription for examinations in 2026–28 of Cicero's pro Roscio Amerino 5 (forsitan quaeratis…)–29 (… iugulandum vobis tradiderunt), and the A-Level (Group 2) prescription for examinations in 2027–28 of 29 (quid primum …)–32 (iuguletis aut condemnetis) and 37 (occidisse patrem …)–57 (… accusare possitis), giving full Latin text, commentary and vocabulary, with a detailed introduction that also covers the prescribed material to be read in English for A Level. In 81 BC Sextus Roscius, a wealthy landowner, was killed returning from a dinner party in Rome. His son, Sextus Roscius the Younger, was charged the following year with parricide, a sacrilegious crime with a gruesome punishment. In Cicero’s first speech at a criminal trial, he shows how his client did not benefit from the death, uncovers corruption which implicates an individual at the highest level of politics, and argues that the courts are being abused to silence the victims. Pro Sex. Roscio Amerino is a speech not only defending a man’s life, but the very fabric of Roman justice. Supporting resources are available on the Companion Website: https://bloomsbury.pub/OCR-editions-2026-2028.