offender
noun [ C ]
uk/əˈfendər/ us LAW
a person who is guilty of a crime:
first-time/repeat/habitual offender A first-time offender might expect probation rather than a jail sentence.
convicted/alleged offenders
young/juvenile offenders
sex/drug offenders
someone or something that does something wrong:
Concerning damage to the environment, holiday resorts tend to be the worst offenders.