The British Board of Film Classification regulates films submitted by studios and assigns age ratings to films based on two main criteria: context and tone of impact. Context refers to how issues are presented, such as whether violence is realistic or fantasy-based. Tone of impact considers how the audience may feel after viewing. For the film Lethal Secret, the board considered drugs, imitable behavior, language, theme, and violence as key areas and ultimately rated the film 15 due to the frequent violence and criminal behavior portrayed.