Technically Multiple flaws shown in the series....1) Without an Autopsy, Toxicological Report cannot come as viscera cannot be handled without doing Autopsy or Postmortem....and infact , those persons who do autopsy or Postmortem (PM) regularly, they are well aware that the toxicological report never comes except in 1 or 2 cases out of lakhs of cases....2) Autopsy/PM can only be done by Doctors who are atleast an MBBS Doctor...mostly it is done by MD doctors who have done MD in Forensic Medicine...and there is no such term "POLICE-R DOCTOR" as no Police Force(Home department) has NO DOCTOR ...they take help of Doctors of Department of Health &Family welfare ....3)Autopsy is done by DOCTORS of Forensic MEDICINE and not by Forensic SCIENCE who are not DOCTORS-they came from General Stream and they have NO RIGHT TO TOUCH THE BODY....AND NO FORENSIC MEDICINE DOCTORS VISIT place of occurrence(EXCEPT IN VERY VERY VERY RARE CASES)....It's only done by POLICE ONLY...and even the police doesn't touch the Dead body more so that the evidences does not get spoiled ..4) Police Official of any Police Station is always below the rank of Doctors of Forensic Medicine and The Doctors of Forensic Medicine who are doing the autopsy is @least at the level of DSP of Police of a District ..so, NO Doctor will ever greet a police officer with "SIR" and if an Inspector in Charge or Officer In Charge DOES NOT GREET A DOCTOR WITH "SIR" then they may even get SUSPENDED for no greeting SUPERIOR properly....5) Leaving most commonly used 50-60 Poisons, rest of the Poisons NEVER GET DETECTED IN INDIA....so, there is no need to GOOGLE to find such....There are many more technical BLUNDERS in the series....it's a long list...just showed few of them...Don't know whose fault is this...is it the fault of WRITER or SCRIPT WRITER?..... leaving the blame game, it has to say that WHO HAVE WRITTEN/ SCRIPTED/ DIRECTED the series has NO IDEA HOW A HOMICIDAL/MURDER CASE GETS HANDLED....It's nothing but a try to disburse WRONG POPULAR IDEAS among the people