Why did India choose holding together federalism

Can someone read this article and tell me the 1) key ideas and 2) one key quote (copy and paste the link the article is not to long at all)from

The defendant and an accomplice were on trial together for burglary. both had given confessions implicating themselves and their accomplice. at trial, the defendant maintained that his confession had been obtained through improper coercion by the police. for the purpose of countering the claim of coercion, the prosecution seeks to place the accomplice’s confession into evidence. after objection by the defendant’s counsel, the judge agrees to issue a limiting instruction to the jury that the confession is to be considered only with regard to the question of whether the defendant’s confession was coerced. may the accomplice’s confession be admitted under that condition?

Which of the following is a law making body that governs england