What's the noun for misdemeanours? Here's the word you're looking for.
misdemeanor
(law) A crime usually punishable upon conviction by a small fine or by a short term of imprisonment. In the USA, misdemeanants usually are incarcerated in county jail for less than one year, but felons usually are incarcerated in state prison for more than one year. Crimes which are punishable by large fines or by longer imprisonment are sometimes called felonies.
“Global risk factors and the prediction of recidivism rates in a sample of first-time misdemeanant offenders.”
“The most striking aspect of Temkin is that the court made no effort to justify the high speed pursuit of an alleged misdemeanant.”
“An executor must be of sound mind, above the age of eighteen, domiciled in the Virgin Islands, and neither a misdemeanant of a crime of moral turpitude nor a felon.”