Locus in quo is a Latin maxim, which means “the scene of the event” or “the place in which”. In general sense it means the place where the cause of action arose, i.e. the place where something is alleged to have occurred.
Illustration
Case Law
Babbon Sheik v. Emperor [(1910) ILR 37 Cal 340]
Bengal Silk Mills Co. Ltd v. Aisha Ariff (AIR 1947 Cal 106)