The problems of investigating crimes committed in a state of passion

The problems of establishing the state of affect as a legally significant circumstance affecting the qualification of crimes provided for in Articles 107 and 113 of the Criminal Code of the Russian Federation are analyzed. The study highlights the complexity of retrospectively assessing a person's behavior and the need to establish a set of legally significant features of affect, including the suddenness of its occurrence in response to the victim’s illegal behavior. The article proposes measures to optimize the investigation of this category of cases, including the development of methodological recommendations, professional development of specialists, and improvement of the regulatory framework, aimed at establishing the objective and subjective elements of a crime committed in a state of affect.