Law is an instrument for regulating a civil society in every corner of people’s social life. The penal law is most important in forbidding social disorder and deviance behavioral of the offenders ie., offences and the offenders to be prosecuted, punished in accordance with the procedure established by law. The Criminal law is not only a penal law which also has strict liability in the socio legal arena. According to the concept of lexfori that is law of the land the criminal law has to be practiced in view of people of the native state. The law shall be changed from time to time concerning with the need of the society. The penal law also is required to be molded in par with socio technological aspects of change. Indian penal code, code of criminal procedure and Indian Evidence act are said to be old criminal law and the new criminal law called Bharatiya Nyaya Sanhita, Bharatiya Nagarik Suraksha Sanhita and Bharatiya Sakshya Adhiniyam are the penal law which is enacted in the Indian parliament so called Indian criminal law with specific vernacular language in title. In accordance with these laws the investigation process is to be conducted under scientific technological criminalistics procedure and certain heinous crimes are included and forensic expert is considered as first hand evidence. The new criminal law is having both positive and negative pros and cons. The three laws might have a possible roadmap to travel in Indian criminal justice administration.
