Tak bayar tax

the other day , went to customer office , saw a pretty young girl with 2 luggages .. The officer told me she was at airport and immigresion stopped her from leaving country , why ? Sebab she tak bayar taxes.  So from KLIA she took cab to CJ tax office.  in a way , it is padan muka for her leh , tak bayar taxes and wasted her flight ticket etc ..