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Voice Spectrography Expert Comparison Cross Examination Summary
Keywords and Main Points
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Voice Spectrography as Forensic Evidence
Voice spectrography is used to compare recorded voices with suspect samples for identification purposes. Courts have upheld its admissibility, emphasizing that it is a scientific technique with judicial relevance (01300025299, 01300040060, 01300036958).
Natvarlal Amarshibhai Devani VS State Of Gujarat - Gujarat, Jil W/O Priyank Manubhai Choksi VS State Of Gujarat - Gujarat, Pravinsinh Nrupatsinh Chauhan VS State Of Gujarat - Gujarat -
Legal Framework and Rights
The requirement of providing voice samples does not violate Article 20(3) of the Indian Constitution, which protects against self-incrimination. Courts have ruled that compelling voice samples for comparison is permissible, provided procedural safeguards are maintained (01300025299, 01300031534).
Natvarlal Amarshibhai Devani VS State Of Gujarat - Gujarat, 01300031534 -
Comparison Techniques and Scientific Validity
Spectrography involves aural and visual analysis of voice patterns. While some experts acknowledge that the technique is not entirely foolproof or scientifically explicit, courts have accepted it as a reliable forensic tool, especially when corroborated with other evidence (01300036958, 01100003228).
Pravinsinh Nrupatsinh Chauhan VS State Of Gujarat - Gujarat, STATE VS MOHD. AFZAL - Delhi -
Cross-Examination and Challenges
Defense can cross-examine witnesses and experts regarding the accuracy, reliability, and methodology of spectrography. Courts have allowed for scrutiny of the technical aspects, including noise interference and the time lag in sample collection (00400059279, 00400059870). Challenges based on privacy or delay have been generally overruled if the scientific process is deemed credible.
STATE OF MAHARASHTRA VS RAMDAS RANGNATH SHINDE - Bombay, State of Maharashtra VS Imtiyaz Ahmad s/o Mohd. Sadik Ali Shaikh - Bombay -
Expert Testimony and Court's Role
Experts analyze voice samples using specialized software (e.g., Multispeech). The court's role is to assess the scientific validity of the comparison, considering expert opinions and cross-examination (00400059279). The court's comparison power remains supreme, and expert findings are subject to judicial scrutiny.
STATE OF MAHARASHTRA VS RAMDAS RANGNATH SHINDE - Bombay -
Relevance in Criminal and Civil Cases
Voice spectrography has been used in cases involving domestic violence, corruption, and criminal investigations, supporting claims or establishing identity. Its use is deemed relevant when it aids in establishing facts within the scope of the case (01300040060, 01100037735).
Jil W/O Priyank Manubhai Choksi VS State Of Gujarat - Gujarat, S. K. SINGHAL VS STATE (C. B. I. ) - Delhi
Analysis and Conclusion
Voice spectrography is recognized as a valuable forensic tool in Indian courts for comparing recorded voices with suspect samples. While its scientific precision is debated, courts have upheld its admissibility, provided proper procedures are followed and expert testimony is subjected to cross-examination. The courts affirm that compelling suspects to provide voice samples does not infringe constitutional rights if done lawfully. Cross-examination serves as a critical safeguard, enabling defense to challenge the technique's reliability, noise interference, and procedural delays. Overall, voice spectrography's role in forensic identification is accepted, emphasizing its scientific basis, judicial scrutiny, and relevance in criminal justice.
References:
- 01300025299, 02300042842, 01300040060, INDGUJ00000038668, 01300036958, 00400059279, 00400031534, 01100037735, 00400059870, 01100003228
Search Results for "Voice Spectrography Expert Comparision Cross Examination"
2017 0 Supreme(Guj) 224 • India - Gujarat
J.B.PARDIWALA
O. during stage of investigation---The Voice Spectrography Test will not fall within the ambit of psychiatric treatment---The Voice ... Spectrography Test is in no manner violative of Article 20(3) of the Constitution of India ... ... O. for comparison---Power of comparison lies with Court only and such power cannot be exercised by I. ... of Voice Spectrography Test. ... sample for the purpose of the Voice Spectrogra....
2008 0 Supreme(P&H) 1991 • India - Punjab and Haryana
RANJIT SINGH
for comparison. ... Finding of the Court: The court found that the defense's request to direct the witness to give his sample voice for ... for comparison, emphasizing the petitioner's right to a fair trial and the relevance of the recorded conversation to his defense ... The examination of remaining prosecution witnesses may continue. The petitioner would be entitled to further cross-examine the witness after obtaining the report of the expert. ... Thus, for the purpose of #HL_START....
2024 0 Supreme(Guj) 1648 • India - Gujarat
GITA GOPI
for comparison with a recorded conversation to support her claims of domestic violence. ... Voice Sample - Domestic Violence - Protection of Women from Domestic Violence Act, 2005 - Sections 12, 28 ... Fact of the Case: The petitioner sought to have a voice sample of her husband taken ... for necessary technical comparison/examination through the forensic expert. ... The petitioner had moved the Court on the cause of action when in a cross-examination#HL_EN....
• India - High Court of Gujarat
UMESH A. TRIVEDI, J
... ... Ratio Decidendi: The court found that compelling voice samples for forensic comparison, particularly in light of established ... sample for forensic comparison upheld, despite challenges on grounds of delay and right to privacy. ... (A) Prevention of Corruption Act, 1988 - Sections 7, 13(1)(d), 13(2) - Voice samples - Direction to the accused to provide voice ... At the same time, if there is any doubt in the mind of the accused with regard to the acceptability of the result obtained from equip....
2022 0 Supreme(Guj) 1546 • India - Gujarat
UMESH A. TRIVEDI
, recorded conversation, in between petitioner – Held, However, drawing of sample of voice as also comparison thereof with equipment ... rendered in Criminal Misc, whereby application filed by prosecution requesting concerned Court directing petitioner to give his voice ... At any rate, again it is presumed by learned advocates that it is not scientifically explicit technique, under which, sample of voice ... At the same time, if there is any doubt in the mind of the accused with regard to the acceptability of the result....
2019 0 Supreme(Bom) 746 • India - Bombay
B.P.DHARMADHIKARI, PRAKASH D.NAIK
His deposition shows that he also had voice sample which was provided in memory card. He then performed spectrography with the help of 'Multyspeech' software. ... His cross examination shows that when he examined Exh. 1 mobile phone, there was no disturbance except noise of network. But the said voice was not there at the time of conversation. He accepted that except voice of conversation, there was noise of network. ... He also submits that there was noise of network when this #HL_STA....
2004 0 Supreme(Bom) 1560 • India - Bombay
A.M.KHANWILKAR
Kathi Kalu Oghad (1961 (2) Cri LJ 856) and concluded that the requirement of lending voice sample to the investigating agency by ... the concerned accused for the purpose of identification of their voice cannot infringe Article 20 (3) of the Constitution of India ... Code, 1973, Article 227 of the Constitution of India] - The court addressed the issue of whether requiring the accused to lend his voice ... The final decision is reached through a combined process of aural and visual examination. The spectrographic method o....
2013 0 Supreme(Del) 486 • India - Delhi
MUKTA GUPTA
Prevention of Corruption Act, 1988 - Sections 7, 13(1)(d) & 13(2) - Entitled to the benefit of doubt - Cross-examination ... of PW1 the Complainant showed that the entire stress was on the trap and he had not been cross- examined to this extent - Testimony ... gone unchallenged - Version of PW1, the Complainant supported by the statement of PW4, the shadow witness who has also not been cross-examined ... The Complainant in his examination-in-chief states that Inspector Tokas searched the Appellant and r....
2019 0 Supreme(Bom) 1105 • India - Bombay
B.P.DHARMADHIKARI, SWAPNA JOSHI
examine the expert & prosecution witnesses or to lead evidence in defence or to grant him opportunity to point out impropriety of ... any other person in the crime - In the light of this finding, separate consideration of prayers made by accused 1 to allow him to cross ... in the said conversation matches with sample voice of accused no. 1 as per CFSL report - Accused nos. 1 and 2 led panch witnesses ... Jaiswal who heard voice clipping in memory card and in whose presence transcript was prepared has in cross#H....
2003 0 Supreme(Del) 1027 • India - Delhi
PRADEEP NANDRAJOG, USHA MEHRA
... Cross examination - Where a witness is not cross-examined on any ... especially where capital punishment is involved — Counsel play an important role in the resolution of issues in an adversarial system — Cross-examination ... ... Terrorist Act — Comparison of term Terrorist Act under two statutes ... He stated that it was possible to quantify difference and similarities when comparison is done by spectrography analysis. ... On 29. 12. 2001, the....
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