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  An information was received at PS Farsh Bazar on 17.07.2012 which was recorded in DD register vide DD no.9A. The information was FIR No.256/2012, PS. Farsh Bazar Page 1 of 23 St. Vs.Manoj that a person has fallen from the roof in KKD Courts, Mediation Complex. The said DD was assigned to SI Inderveer Singh.  On receiving copy of DD No.9A SI Inderveer  Singh alongwith  Ct. Sanjeev went to Ground  Floor Mediation Centre, Karkardooma Courts, Delhi, where a wall fan was found lying in broken condition and the roof of the Mediation Centre made up of plastic at First Floor was also found damaged.   On enquiry, they came to know   that   injured   had   already   been   taken   to   GTB   Hospital   by   CATS Ambulance.   No eye witness was found at the spot. Blood was also not found at the spot.   Thereafter, leaving Ct. Sanjeev to guard the spot, SI Inderveer   Singh   reached   GTB   Hospital,   collected   the   MLC   of   injured, wherein  injured was declared brought dead.  No eye witness was found at the hospital also.  SI Inderveer came back to the spot and CCTV footage of 2nd floor, B­Block was checked.  On checking the Camera No.82, Installed outside Court No.56, IInd Floor, deceased was seen siting on the railing. Some boys were also found standing with deceased and talking with each other.   As per CCTV Footage at about 10.13 am one of those boys, who were standing around deceased, kept his one hand on the chest of deceased and pushed him down while pulling up his leg with the other hand. Crime team was called. Rukka was prepared and present FIR was got registered. After registration of FIR Inspector Raj Kumar, SHO PS. Fash Bazar also reached at the spot and further investigation was carried out by him.  Crime team   inspected   and   photographed   the   scene   of   crime.   Site   plan   was FIR No.256/2012, PS. Farsh Bazar Page 2 of 23 St. Vs.Manoj prepared.     Wall   fan     make   Bajaj   Grace   white   colour   was   taken   into possession   and   seized.     Thereafter,   Inspector   Raj   Kumar   alongwith   Ct. Sanjeev went to GTB Hospital, where mother of deceased met him, who identified the body to be of her son Nazim. Her statement was recorded. Dead body was sent to mortuary GTB Hospital and after postmortem same was   handed   over   to   relatives   of   deceased.     After   postmortem,   doctor handed over sealed pullanda containing clothes of deceased, blood sample of deceased in gauze piece and one sample seal of hospital, which were seized.     Brother   of   deceased   namely   Shaukat   was   joined   in   the investigation   and   brought   to   KKD   Court,   where   after   seeing   CCTV footage,   he   identified   his   brother   Nazim   as   the   person,   who   was   seen falling   from   roof   and   the   person   who   is   pushing   his   brother   Nazim   as accused   Manoj.     Experts   from   Paramid   Cyber   Security   were   called   to preserve the CCTV Footage from the control room CCTV of Karkardooma Courts.     Permission   was   also   obtained   from   Ld.   Senior   Civil   Judge   to obtaining the hard disc of the CCTV Footage from Control Room CCTV, Karkardooma Courts.   Mr. Dinesh from Paramid Cyber Security Service came   to   KKD   Courts   and   took   out   the   hard   disc   from   CCTV   Control Room, KKD Courts and he prepared mirror image from the original hard disc and same was saved in other hard disc.   Hard discs were sealed and seized.     Details   of   hash   value   was   taken   from   expert.     Statements   of witnesses were recorded.   Case property was deposited in the malkhana.

16.  PW­12 Sh. Dinesh Gaur deposed that in the year 2012, he was working   in   Pyramid   Cyber   Security   and   Forensic   Pvt.   Ltd   as   Forensic Investigator and that his company was helping in forensic investigation in the corporate sector and in the Government agencies like police etc.   He deposed that he does not remember the date or month but one day in the year 2012, at the request of Inspector Raj Kumar, SHO, he came to CCTV Control Room in Karkardooma Court Complex, where other police staff alongwith Ashwini, who used to take care of CCTV Footage in the CCTV Control Room was also present.  He deposed that he took out the Hard Disc from the CPU of the control room and prepared two mirror copies of the hard disc with the help of a device called logicube Dossier.  The two hard discs   for   preparing   the   mirror   image   were   given   by   the   police.     He generated  the  hash  value  of  original hard disc, which was taken out from FIR No.256/2012, PS. Farsh Bazar Page 10 of 23 St. Vs.Manoj the CPU with the help of Logicube Dossier.  A summary was taken out and the original hard disc alongwith the said summary was handed over to the IO. He proved the summary as Ex.PW12/A and deposed that this summary contains the make of the Hard Disc and its capacity as also the hash value. He   deposed   that   original   hard   disc   was   seized   by   the   IO   vide   memo Ex.PW12/B   and   the   mirror   images   were   also   seized   vide   memo Ex.PW12/C.    The  hash  value  of   mirror  image   was  also   generated.    He deposed that there was no tempering in the process of taking out the Hard Discs from the CPU and doing the preparation of its mirror image.    

31.    As such, the most powerful evidence against the accused is the CCTV   recordings.  Ld.   Defence   Counsel,   however,   challenged   the credibility   of  CCTV  Footage.    The  main  thrust  of  the  argument  of  Ld. Counsel is that there is difference in the hash value of the original hard disc and the DVD, which was played in the court, therefore, no conviction can be based relying upon the same.

32.  To   prove   the   genuineness   or   authenticity   of   CCTV   Footage, Prosecution   has   examined   several   witnesses.  PW­12   Sh.   Dinesh   Gaur deposed that in the year 2012, he was working in Pyramid Cyber Security and   Forensic   Pvt.   Ltd   as   Forensic   Investigator   and   at   the   request   of Inspector   Raj   Kumar,   SHO,   he   came   to   CCTV   Control   Room   in Karkardooma Court Complex, where other police staff alongwith PW­13 Ashwini, who used to take care of CCTV Footage in the CCTV Control Room was also present.  He deposed that he took out the Hard Disc from the CPU of the control room and prepared two mirror copies of the hard disc with the help of a device called logicube Dossier.  The two hard discs for preparing the mirror image were given by the police.  He generated the hash value of original hard disc, which was taken out from the CPU with FIR No.256/2012, PS. Farsh Bazar Page 20 of 23 St. Vs.Manoj the help of Logicube Dossier.  He deposed that there was no tempering in the   process   of   taking  out  the   Hard   Discs   from   the   CPU   and   doing   the preparation of its mirror image.  Version of PW­12 is supported by PW­10 Ct. Yatender, PW­13 Ashwini  & PW­16 Kapil, who all stated that no one interfered or tempered with the hard disc.

  Regarding difference coming out in the hash value of hard disc, PW­12 Sh. Dinesh Gaur has deposed that he had taken out the hash value of the hard disc at the time of seizure by using a portable devise logicube dossier   and   it   is   possible   that   due   to   use   of   different   software,   the discrepancy in the hash value may have come.  He further stated that it is probable that if the disc is not provided the right protection while attaching it to some system or Network, the hash value may change because of the viruses or any other executable programme.