CRIME is the transgression by individuals of rules made by the community. Wrong-doing may be either intentional or accidental—a wilful revolt against law, or a lapse through ignorance of it. Both are punishable by all codes alike, but the latter is not necessarily a crime. To constitute a really criminal act the offence must be wilful, perverse, malicious; the offender then becomes the general enemy, to be combated by all good citizens, through their chosen defenders, the police. This warfare has existed from the earliest times; it is in constant progress around us to-day, and it will continue to be waged until the advent of that Millennium in which there is to be no more evil passion to agitate mankind.