Quashing a First Information Report (FIR) and quashing criminal proceedings are distinct legal actions. An FIR is typically quashed when it doesn't disclose a cognizable offence or is an abuse of process. Criminal proceedings can be quashed if they are irregular, unduly delayed, or if the evidence makes a conviction highly improbable. The High Court, under Section 482 of the CrPC, possesses inherent powers to quash proceedings to prevent abuse of process or secure justice, considering the nature and gravity of the offence.