How To Catch an Illegal Immigrant T-Shirt. A Taco trap has proven time and time again to be the most effective method of capturing illegals. It seems to be the aroma of spicy carne and taste of fresh pico de gallo that gets them every time. For faster results add a bottle of corona chulula or a cerveza clamato.. You may catch more then one! Please note if you catch illegals using this manner please tag them immediately and contact INS for immediate deportation. Thanks for your support!