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7. In an other scene the two could be seen together in front of the house of Jasbir Sansi, Head Const. Ram Kumar (No. 232/W) demanding and accepting money from Beena Sansi and then handed it over to the other accused Head Const. Ram Kumar (No. 391/W) and then HC Ram Kumar (No.391/W) keeping the money in his pocket. (Accused charged for these allegations.)

8. During the investigation the specimen voice of Head Const. Ram Kumar (No. 232/W) and Head Const. Ram Kumar (No. 391/W) were taken and sent for voice spectrography alongwith questioned video cassettes for spectrography report / opinion. A report was received from the CFSL, New Delhi stating, inter­alia, that the specimen voice of the two accused matched with the voice available in the questioned video cassettes.

C.C. No. 91/11 12 of 105

17. On auditory examination of questioned voices and specimen voices revealed that they were having similar linguistic and phonetic features. The analysis of spectrography examination of the common clue words / sentences selected from the specimen voices and also from the questioned voices also showed that they were similar in respect of their number of formants, formant frequencies, distribution, intonation pattern and other general visual features in the voicegrams.

18. The witness had further deposed that the consolidated effect of the auditory and voice spectrography analysis was that voice mark Ex. Q­1(II)(A) was the probable voice of Ram Kumar (No. 232/W) whose specimen voice was marked Ex. S­1(A) and the questioned voice marked Q­1(XIV)(A) and specimen voice of Ram Kumar (No. 391/W) marked S­2 was the probable voice of Ram Kumar (No. 391/W). The witness had identified his report as Ex. PW­4/B which he was sent to CBI alongwith all the other exhibits after being sealed with the seal of CFSL. The witness had identified the case properties in the Court.

39. The witness had identified the cassettes in which he had recorded the specimen voice of Jasbir sansi and his wife Beena sansi Ex. P4 along with its wrapper Ex. P5 and also the audio cassettes Ex. P1 with its wrapper Ex. P2 wherein he had recorded the specimen voice of the accused herein.

40. Witness PW­16 Shri D.K. Thakur is also the Investigating Officer who had taken over the investigation from Inspector Mukesh Kumar. As per his testimony he had forwarded five Hi 8 cassettes to CFSL, Chandigarh to obtain expert opinion regarding the authenticity and genuineness of the records and whether there was any editing or tampering in the video clippings recorded in the said cassettes. A positive report was received from the CFSL, Chandigarh indicating that the video C.C. No. 91/11 25 of 105 recordings were genuine and not tampered with. He had also received copies of the video clippings in the form of CDs for the purpose of investigation. He had further deposed that he had also received a positive voice spectrography report Ex. PW­14/B from CFSL, Delhi.