levelled a series of allegations against wankhedeas far as the drugs case is concerned a special investigation team sit of the narcotics control bureau ncb reached mumbai on saturday to carry out an investigation into the drugs probesenior ips officer sanjay kumar singh ddg operations at ncb headquarters who is heading the sit said we have taken over some cases and will start our investigation into itwhen asked whether the cases would be reinvestigated he said let me first see the case by case records and the progress in the investigation so far then we will decide right now only further investigation will be conducted in those caseswankhede also went on record to say that he was not an investigating officer of these cases adding that he was a supervisory officer as a zonal director and his role will continue to be the same