This article is dedicated to the research, in terms of comparative law, of the shape and type of guilt for offences on human trafficking, of the reasons for such offenses and of the purpose of the offences on human trafficking. It is argued that toward the serious consequences produced to the aggravated variants of the offenses on human trafficking, there is reckless too. However, in such cases, we do not testify the offense perpetration with two forms of guilt (as specified at art.19 PC RM). It is shown that the reasons for human trafficking offenses are the most diverse: from purely selfish reasons (revenge, jealousy, material interests, etc.) to the reasons of altruistic origin (eg, the offender striving to save the child from a disadvantaged family). The differences between such reasons, especially described by the actual role of the offender in a situation or another, should be considered when individualizing the punishment established for offences on human trafficking.