The topic of the final paper are criminal acts committed against honour and reputation, and taking into consideration their conciseness, the aim is to achieve an approach which is as comprehensive as possible, starting from the principled considerations to component parts and its significant characteristics. Honour and reputation as elementary rights of personal nature represent a fundamental component of the human dignity and their protection is normalised by the Constitution and other international documents. In criminal acts of this group we include insult, humiliation and slander. The final paper starts with conceptual definition of honour and reputation where is listed their dualistic concept and the influence of absence of objective criterion which leads to normative and factual determination as additional factor of discernment. The next step is to elaborate in detail an inalienable right of freedom of opinion, the expression of thoughts and restriction of freedom of the media in favour of protection of honour and reputation. The fundamental item of this segment belongs to journalists in informing the citizens about a variety of issues considering public interest. Individual determinants of criminal acts, their detailed description, some specifics, structure, mutual demarcation and criminal operation by private lawsuit are considered as an immanent part of this paper. Every individual criminal act contains examples from jurisprudence. The terminal parts of the paper are directed on proving the truth which will be achieved after the perpetrator of a certain criminal act proves veracity of his factual claim.