in flagrante delicto
From LSJ
τὸ ἓν καὶ τὸ ὂν πολλαχῶς λέγεται → the term being and the term one are used in many ways, one and being have various meanings, one and being have many senses
Translations
in the act
Chinese Mandarin: 現行/现行; Danish: på fersk gerning; Dutch: op heterdaad; English: in the act, red-handed, in flagrante delicto; Finnish: itse teossa; French: sur le fait; German: auf frischer Tat; Greek: επ' αυτοφώρω, με λερωμένα τα χέρια, στα πράσα; Ancient Greek: ἐπ' αὐτοφώρῳ; Norwegian: på fersk gjerning; Polish: na gorącym uczynku; Russian: на месте преступления, с поличным; Spanish: con las manos en la masa; Swedish: på bar gärning; Tagalog: huli sa akto