english
1
general::
see under CATCH RED-HANDED.
American Heritage Idioms
2
general::
Phrase(s): catch someone in the act (of doing something) to discover someone doing a [bad] deed at the very moment when the deed is being done. (See also caught in the act.) • I caught her in the act of stealing the coat. • He was caught in the act of taking money from the cash box.
McGrawhill's American Idioms And Phrasal Verbs