In the bachelor’s thesis, constitutional, constitutional-revisional, and legislative procedures are described and analyzed. Executive legal acts in Slovenia and Croatia are presented. Current trends in legislative field in Slovenia are researched. They relate to the percentage of laws which are adopted in ordinary, shortened, and urgent legislative procedure, and to the number of current executive acts. Trends in the mentioned field are researched on the basis of data from the period between 2007 and 2017. The reason to research this field is the importance of the procedure of adopting legal acts, as formal legality, in addition to material legality, is the condition for the general legality of the legal act. It was ascertained that the percentage of laws which were adopted in shortened and urgent procedure is diminishing generally. On the other hand, the number of executive acts in force is increasing. In 2017 we thus had 22.5 executive acts in force per one law on average in Slovenia. These are almost four executive acts more than ten years ago. It was also ascertained that legislative procedure in Slovenia and Croatia is different but not so fundamentally in order to not to be mutually comparable. The review of the trends in the legislative field and the comparison of the today’s state with the condition in past are useful mostly because of the social monitoring of the work of the legislator. In future, it would be interesting to research also what influence on the legislative procedure had the abolishment of the second house of the Croatian parliament in 2001. It would be also good to perform a review of trends in the legislative field once more after a certain period of time.