Do Magistrates have Power to Extend Time for Detention & Investigation of UAPA Offences u/ Sec 167, CrPC?

Recently, the Supreme Court has affirmed that a Magistrate cannot grant extensions to investigation agencies for the purpose of carrying out investigations under Sec167, CrPC when the accused is charged under the UAPA. This decision was made by relying on the case of Bikramjit Singh v State of Punjab. This post seeks to enquire into the law on this point by adverting to a textual analysis of relevant provisions and discussing the said case law.