The published material presents a complex analysis of the contraventions provided in Chapter XIX of the contraventional Code, which affects the public order and the public security. It is noted that the generic object of the given contraventions is formed by two large groups of social relations: social relations regarding public order assurance and social relations regarding public security assurance. It was pointed out the material object, which is present in some analyzed contraventions. Last but not least, it is established the subject of the contraventions, the natural person and the legal person, but also the quality of a special subject - the person with responsible positions. This paper is a useful tool for specialized training and application in the practical activity, being available to the law faculty students and to the professionals of the legal world as well.