The accused in Hathras rape case will undergo brain fingerprinting

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Brain Electrical Oscillation Signature Profiling (BEOSP) also known as brain fingerprinting is a neuro psychological method of interrogation in which the accused’s participation in the crime is investigated by studying their brain’s response.

  • A team of CBI officers probing the alleged rape and murder of a 19-year-old Dalit girl in Hathras, Uttar Pradesh, arrived at the Gandhinagar-based Forensic Science Laboratory (FSL) with the four accused. 
  • A team of forensic experts at the FSL sat down with the CBI team to study the case and prepare “probes” short questions for the BEOSP test.
  • Brain Electrical Oscillation Signature Profiling (BEOSP) also known as brain fingerprinting is a neuro psychological method of interrogation in which the accused’s participation in the crime is investigated by studying their brain’s response.
  • The BEOSP test is carried out via a process known as electroencephalogram, conducted to study the electrical behaviour of the human brain.
  • The consent of the accused is first taken and they are then made to wear caps with dozens of electrodes attached to them.
  • The accused are then shown visuals or played audio clips related to the crime to check if there is any triggering of neurons in their brains which then generate brainwaves.
  • The tests are based on the phenomenons of ‘knowledge’ and ‘experience’.
  • A person’s brain might have knowledge of the crime committed and the alibi they have come up with.
  • But it is the ‘experience’ of having participated in the crime that determines their guilt.
  • The test results are then studied to determine the participation of the accused in a crime.
  • The BEOSP procedure does not involve a question answer session with the accused and is rather a neuro psychological study of their brain.
  • In a polygraph test, the accused person’s physiological indicators are taken into account which include blood pressure, pulse rate, respiration and skin conductivity.
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