This argument works against you. If you were illegally searched, then law enforcement subsequently does parallel construction, defense counsel can easily and p

This argument works against you. If you were illegally searched, then law enforcement subsequently does parallel construction, defense counsel can easily and persuasively argue that the subsequent evidence is "fruit of the poisoned tree" and would not have occurred without the illegal search. The judge can then throw out all evidence from the parallel construction. The only way parallel construction works is if defense counsel and the judge don't know that the illegal search ever happened at all - which is very unlikely in the case of an illegal border search.