How cops took cue from West, used new tech in riots conspiracy probe

New Tech in Probe

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In News:

  • The chargesheet on Delhi riots was recently filed by the Delhi Police.
  • Due to the sensitivity and complexity of the cases, Delhi Police has used high-end technology, advanced techniques, and scientific tools, in the process of filing the chargesheet.
New Tech in Probe
New Tech in Probe

Technologies used by Delhi Police:

Internet Protocol Details Records (IPDR) analysis:
  • The Delhi Police conducted an Internet Protocol Details Records analysis, which is often used by police forces in the Western countries.
  • IPDR analysis is the study of incoming and outgoing internet traffic from smartphones that use VoIP calls for communication.
  • VoIP stands for Voice over Internet Protocol, and in common terms it means phone service over the Internet.
  • The IPDR analysis was useful as many accused were communicating through calls and chats on apps like WhatsApp and Telegram.
Geo-location analysis:
  • Geo-location analysis was also used by police to find details from Google Maps installed on the phones of the accused. This helped to locate their presence and movement at the riot spot.
  • Geo-location analytics is defined as the analysis of IP address data to determine a user’s location.
Internet Protocol (IP) address:
  • The Internet, sometimes called the network of networks, is based upon one simple principle: transferring information from one computer to another.
  • In order to do this each computer needs an identity which is called the Internet Protocol address or IP address.
  • Thus, an IP address is a number assigned to each device connected to the internet. It acts as a network address and helps to locate the device.
New Tech in Probe
New Tech in Probe

Facial recognition technology:

  • The Police obtained hundreds of video clips from CCTV cameras installed on roads, video recordings from smartphones, media houses etc. and analysed them with the help of analytics tools and facial recognition system.
  • The photographs extracted from them were matched with multiple databases, including the Delhi Police databases maintained by the government.
  • This helped in identifying 2,655 people and taking legal action against them with other supporting evidence.
Fund-flow analysis:
  • The Police also took help of technology to track money used in the riots.
  • A software for fund flow analysis was used to identify patterns in the transactions done by the accused and to establish its circulation for organising and funding the riots.
Analysis of e-Vahan database:
  • Rioters determined the names of the vehicle owners by sending text messages to e-Vahan app, before setting the vehicles on fire.
  • The number from which messages were sent on the rioting day were obtained from the e-Vahan database, which helped in identifying the rioters.
  • e-Vahan is an on line web application for Regional Transport Office (RTO) related activities like vehicle registration, permit, taxation
Mobile forensics:
  • Data recovered from mobile handsets of the accused was helpful in gathering evidence against them with the help of mobile forensics.
  • Through this, the police could recover various forms of digital evidence like, recorded conversation, videos, etc. from the mobile handsets.

About: Facial Recognition technology

  • A facial recognition system is a technology capable of identifying or verifying a person from a digital image or a video frame from a video source.
  • There are multiple methods in which facial recognition systems work, but in general, they work by comparing selected facial features in the image with faces in a database.
  • It is also described as a Biometric Artificial Intelligence based application that can uniquely identify a person by analyzing patterns based on the person’s facial textures and shape.

About: Facial Reconstruction technology

  • The Police used the facial reconstruction technology to identify bodies that were severely burnt. This was done by superimposing (putting) skulls on the photograph of victims.
  • Facial reconstruction is a technology that helps to reconstruct what a face might have looked like, from a skull.  This technique is generally used when the identity of the victim is unknown.
  • In addition to criminal investigations, facial reconstructions are created for remains believed to be of historical value and for remains of prehistoric humans

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