catch someone red-handed
US /kætʃ ˈsʌm.wʌn ˌredˈhæn.dɪd/
UK /kætʃ ˈsʌm.wʌn ˌredˈhæn.dɪd/

1.
menangkap secara terang-terangan, menangkap basah
to discover someone in the act of doing something wrong or illegal
:
•
The police caught the thief red-handed as he was trying to break into the car.
Polis menangkap pencuri itu secara terang-terangan ketika dia cuba memecah masuk kereta.
•
My mom caught me red-handed eating cookies before dinner.
Ibu saya menangkap saya secara terang-terangan makan biskut sebelum makan malam.