The chargesheet is integral to the process of taking cognisance, the issue of notice and framing of charge, being the only investigative document and evidence available to the court till that stage. Substantiated reasons and grounds for an offence being made in the chargesheet are a key resource for a Magistrate to evaluate whether there are sufficient grounds for taking cognisance, initiating proceedings, and then issuing notice, framing charges etc. 21. These provisions, however, have to be read along with the power of the police to investigate under sub-section (8) to Section 173 of the Code even when they have submitted a report under sub-section (2) to Section 173 of the Code. The police also has the power to produce additional documents and evidence, as has been held by this Court in Parkash Singh Badal and Another v. State of Crl. Appeal @ SLP (Crl.) No. 1074 of 2017 & Ors. Page 16 of 38Punjab and Others16; Narendra Kumar Amin v. Central Bureau of Investigation and Others17;