What does ARCTA ET SALVA CUSTODIA mean? March 26, 2017 All Dictionary ARCTA ET SALVA CUSTODIA meaning in Law Dictionary Lat. In rigid and safe custody or keeping. Whenever a defendant is arrested on a capias ad satisfaciend u i/i, (ca. &'&.,) he's to be kept arcta et salva custodi. 3 Bl. Comm. 415.