The article discusses the need for the adoption of the law “On private detective activity”. The Republic of Kazakhstan claims to be a democratic, secular, legal and social state, the highest values of which are a person, his life, rights and freedoms. The State fulfills this obligation in various ways - by granting citizens the right to self-defense and necessary defense, to apply to law enforcement agencies for this purpose, to judicial protection of rights and freedoms, as well as by providing an opportunity to defend their rights and freedoms in other ways not prohibited by law. The need to introduce this type of activity is caused by the economic and political changes that have occurred in society since independence. The birth of a private form of ownership has led to the growth of a significant number of commercial structures, which state law enforcement agencies are unable to ensure information and other security. All this necessitates the emergence of such a new type of socially useful human activity - private detective work, which should receive a legal status with the adoption of an appropriate law. Back in 2010, the Head of State made a proposal to introduce the institute of private detective work in the republic [1]. In a Message to the People of Kazakhstan in 2012, the President of the Republic once again recalled the need to finalize the draft law on private detective work. The Majilis of the Parliament of the Republic considered the bill in 2015, but postponed it indefinitely. Although the introduction of the institute of private investigations will not require any budget expenditures, the law has not yet been adopted. This law is necessary for simple law-abiding citizens and individual entrepreneurs to exercise their constitutional rights, who, if necessary, can seek help not only from public but also private investigators.