Legal Standards for Collection and Use of Evidence in Narcotics Cases in Pakistan

Abstract

Because offenses under the Control of Narcotics Substances Act (CNSA), 1997 carry severe and deterrent penalties, the law prescribes strict and exacting standards for the collection, preservation, and presentation of evidence during investigation and trial. The superior courts have gone to great lengths to interpret and explain these standards with a view to enabling the investigating and prosecuting authorities to secure convictions. Nevertheless, the conviction rate remains unacceptably low. An analysis of the reasons for acquittals set out in court judgments indicates that either the investigating authorities have failed to collect evidence in accordance with rules, or the prosecutors have neglected to produce witnesses or provide them with proper assistance during trial. This article examines recent judicial pronouncements to argue that the legal position regarding the lawful collection and use of evidence during investigation and trial has now attained considerable clarity. Nevertheless, law enforcement agencies and prosecutorial authorities have yet to elevate their professional capacity and investigative standards to optimal levels, a shortcoming reflected in the persistently low rate of convictions. To address this deficiency, specialized training should be imparted to the investigators and prosecutors, coupled with the establishment of effective accountability mechanisms to ensure strict compliance with statutory requirements and to fix responsibility for any violations.  Particular attention should be given to recurring shortcomings identified by the courts, including breaches in the chain of custody, inadequate documentation of recovery, inability to substantiate the chemical examiner’s report and failures in producing and assisting the witnesses during trial.