In this changing new digital era, the growth and development of technology catch an incredible, rapid speed. Adding to said statement, the crimes or offenses escalated on an hourly basis, not even the day, month, or year. Illicit activities are in the news worldwide, to prevent them before any absurd or miserable event happened, the intervention of technology way back and now it’s been becoming advanced to speed up the action. But the dreadful event, those which already took place, in the process of delivering justice to the suffering ones the evidence and criminal investigation plays a vital role. Having said that in this developing age, this study focuses and put forth the blend of technology with the legal domain that has been observed to putting a tremendous impact on the criminal justice system from identifying and collecting to protecting electronic evidence for a successful or meaningful criminal investigation. Moreover, Blockchain and Artificial Intelligence coming into the spotlight as both, the most advanced technologies are producing the best results, breaking records, and giving immense exposure to the legal justice system by contributing to criminal investigation via the procedure of collecting electronic evidence. This study is also concerned with the brief of both technologies concept and working, followed by the suggestion and recommendation that will lead to the improvement and betterment in efficiency and effectiveness working of the criminal investigation procedure. As it’s a long chain that connects humans, technologies, and the collection of traces as evidence, that help in the investigation, which directs the court in delivering the fair and justified judgment that changes the future or the lives of the sufferers. Hence, this study tries to highlight the fact that all have to take a step forward together to bring positive change via technology.