The question is, in what way can it be used in support of other evidence ? Can it be used to fill in miss ing gaps ? Can it be used to corroborate an accomplice or, as in the present case, a witness who, though not an accom plice, is placed in the same category regarding credibility because the judge refuses to believe him except in so far as he is corroborated ? In our opinion, the matter was put succinctly by Sir 'Lawrence Jenkins in Emperor vs Lalit Mohan Chuckerbutty(2) where he said that such a confession can only be used to "lend assurance to other evidence against a co accused "or, to put it in another way, as Reilly J. did in In re Periyas wami Moopan(3) "the provision goes no further than this where there is evidence against the co accused sufficient, if believed, to support his conviction, then the kind of confession de scribed in section 30 may be thrown into the scale as an additional reason for believing that evidence." (1) [1949] 76 I.A. 147 at 155.