Weerawarnakula v. The Republic of Sri Lanka – sllr 2002 volume 3 page 213

In the case of WEERAWARNAKULA v. THE REPUBLIC OF SRI LANKA, the court addressed the issue of whether a trial judge possesses the discretionary authority to order subsequent prison sentences to run concurrently when an accused is already serving an earlier term of imprisonment. It was held that, under the relevant statutory framework of the Penal Code and the Code of Criminal Procedure (notably sections 300, 321, and 336), a trial judge cannot direct that later sentences run concurrently with those already being served. Sentences are deemed to commence from the moment they are judicially pronounced, and administrative procedures such as being taken into custody signify the start of imprisonment. The decision reaffirmed the principle that a direction for concurrency pertains to the execution