The Department of Mathematics organized an invited talk on 06th October 2021 (in the online mode) by DR. P Vinod Bhattathiripad who is a well-known expert in Cyber Forensics who has already served as a Technical Expert to the police, judiciary, Directorate of Revenue Intelligence (DRI), and Special Intelligence and Investigation Bureau of Dept of Customs dept on several cases involving cyber evidence. His talk was on ‘Mathematical Approaches in Crime Investigation’ and he explained the mathematical tools using in identifying the authenticity of a matter/ photo and in cyber-related forensics. He explained that one must be ‘Mathetic’ to be an expert in this field. The class was very interesting and about 200 students and faculty members registered for the talk. Dr. Manju K. Menon, Head. Department of Mathematics welcomed and introduced the speaker and after the talk, there was a question-answer interactive session which was coordinated by Maya K. Our second MSc Student Mr. Galdin George proposed the vote of thanks.