🔑 Topper's Structured Answer Formulation:
1. Absolute Rule: Yes, under Section 266(2) BNSS, a Magistrate can refuse to summon.
2. Ground for Refusal: Only if the application is filed for the purpose of (a) Vexation, (b) Delay, or (c) Defeating the ends of justice.
3. Mandatory Process: The Magistrate MUST record the reasons for refusal in writing. Failure to record reasons vitiates the order, violating the constitutional Right to a Fair Trial (Art 21).