The objective of this research is to investigate the intricate aspects of Pakistan's criminal justice system. The investigation will primarily concentrate on the specific techniques and methodologies used throughout the inquiry. This study examined some deficiencies in the current investigative approach. The researchers conduct an examination of academic literature, case studies and legal frameworks to accomplish this objective. To address the identified issues, it conducts an analysis of the strengths and the researchers’ accesses and then proposes modifications. This study explored the significance of comprehensive investigations in order to guarantee justice, fairness and responsibility which are crucial subject. In parallel to our examination of the impact of significant issues on the effectiveness of procedures such as inadequate training, corruption, procedural errors and insufficient resources, the researchers also analyze the consequences of these challenges on the outcomes of investigations and legal proceedings. More precisely, the researchers examine how these attributes impact the efficiency of the procedures. The research emphasizes the need for rigorous training programs, modernizing obsolete legislation, and strengthening collaboration between prosecutors and law enforcement in order to address these difficulties. Ultimately, it demonstrates the essentiality of comprehensive inquiries in maintaining the supremacy of legal principles and restoring public confidence in the criminal justice system.