Kovetz Haurus

The Rambam, in Hilchos Shabbos 24:7, rules that Beis Din may not carry out the punishment of either death or lashes on Shabbos. He cites the same pasuk of “lo seva’aru” as the source for this halacha. In his Sefer Hamitzvos the Rambam lists as a separate negative commandment (number 322) that Beis Din may not judge or carry out a punishment on Shabbos.