Explanation:

- Section 25: Confession to police officers is generally not admissible. This is a safeguard against coercion.

- Section 26: Any confession made while in police custody is not admissible, unless made in the immediate presence of a Magistrate.

- Section 27: Allows for admissibility of information from a confession if it leads to discovery of a fact. This section creates an exception for information only relevant to facts discovered.

- Section 28: Relates to confessions made after inducement, threat, or promise and is focused on whether influence was removed.

Option:3 - S.27 deals with the admissibility of confessions leading to discovery of facts.