The Supreme Court has asked the Centre to spell out the action taken by it for the implementation of the direction, given by the apex court, on ensuring safe custody of narcotics and psychotropic substances seized by enforcement agencies.<br/><br/> Hearing a PIL, a bench headed by Chief Justice TS Thakur, asked the Centre's counsel to take instructions from the departments concerned and apprise it within six weeks. The court also asked the Health Ministry to inform it about the progress in setting up de-addiction centers for rehabilitation of drug addicts.