OVERT. Open. An overt act in treason is proof of the intention of the traitor, because it opens his designs; without an overt act treason cannot be committed. 2 Chit: Cr. Law, 40. An overt act then, is one which manifests the intention of the traitor, to commit treason. Archb. Cr. Pl. 379 4 Bl. Com. 79.

2. The mere contemplation or intention to commit a crime; although a sin in the sight of heaven, is not an act amenable to human laws. The were speculative wantonness of a licentious imagination, however dangerous, or even san-guinary in its object, can in no case amount to a crime. But the moment that any overt act is manifest, the offender becomes amenable to the laws. Vide Attempt; Conspiracy, and Cro. Car. 577.