persons in custody may be interrogated separately and simultaneously and both of them may furnish similar information leading to the discovery of fact. Or, in rare cases, both the accused may reduce the information into writing and hand over the written notes to the police officer at the same time. We do not think that such disclosures by two or more persons in police custody go out of the purview of Section 27 altogether. If information is given one after the other without any break- almost simultaneously, and if such information is followed up by pointing out the material thing by both of them, we find no good reason to eschew such evidence from the regime of Section 27. However, there may be practical difficulties in placing reliance on such evidence. It may be difficult for the witness (generally the police officer), to depose which accused spoke what words and in what sequence. In other words, the deposition in regard to the information given by the two accused may be exposed to criticism from the stand point of credibility and its nexus with discovery. Admissibility and credibility are two distinct aspects, as pointed out by Mr.Gopal Subramanium. Whether and to what extent such a simultaneous disclosure could be relied upon by the Court is really a matter of evaluation of evidence.”