Civil servants, as persons who perform tasks within the competence of state bodies, have strict principles and rules that must be observed when performing official duties. They are not only normative but also ethical. This means that it is not enough to respect the normative provisions, but also the rules of conduct in relation to the citizens for whom they perform jobs. Any violation of these rules, a civil servant leads to the possibility of initiating proceedings for minor or serious breaches of official duty. If he is found liable, he shall be sentenced in accordance with the gravity of the injury, the consequences, the mitigating and aggravating circumstances. Liability for breaches of official duty of civil servants, as well as all other rules of conduct related to civil service, are prescribed by the Law on Civil Servants. The provisions of the General Administrative Procedure Act shall apply in proceedings for breach of official duty. In each state, light and severe violations of official duty and penalties for the same are regulated differently, but there are still many similarities. In addition to the descriptive one, the paper presents a comparative way of writing, as well as a research part dedicated to the statistics of sentences imposed for light and severe breaches of official duty.