noun
offender; violator; transgressor
A person who breaks a rule, law, or regulation. Often used in legal, traffic, or institutional contexts.
交通違反者は罰金を払わなければならない。
Traffic violators must pay a fine.
規則の違反者は退場を命じられることがある。
Rule violators may be ordered to leave.
犯罪者 is a criminal who commits a crime (犯罪), often implying a more serious offense than 違反者, which can be used for minor rule-breaking.
Compound of 違反 (violation) + 者 (person). The reading いはんしゃ follows standard on'yomi.