https://www.scconline.com/blog/post/2021/03/16/section-1951bi-crpc-doesnt-bar-prosecution-by-investigation-agency-against-persons-producing-false-evidence-at-the-stage-of-investigation-supreme-court/
Section 195(1)(b)(i) CrPC doesn't bar prosecution by Investigation Agency against persons producing false evidence at the stage of investigation: Supreme Court