Sir John W. Salmond, Jurisprudence (1913)
“ Criminal liability is usually sufficiently established by proof of some act which the law deems dangerous in its tendencies, even though the issue is in fact harmless. The formula of the criminal law is usually: “If you do this, you will be held liable in all events,” and not: “If you do this you will be held liable if any harm ensues.” An unsuccessful attempt is a ground of criminal liability, no less than a completed offence. ”
