As Albucius Silus demonstrates, accusations of unchastity were invariably supported using circumstantial evidence. This owes both to the furtive nature of the crime and a general reluctance on the part of the Romans to address sexual matters directly in a court of law. Livy describes how the Vestal virgin Postumia was suspected of incestus on account of her attractive appearance and relaxed manner (Liv. 4.44.11). Likewise, a careful attention to dress was used as evidence of unchastity at the trial of the Vestal Minucia (Liv. 8.15.7).