in texas legally. joining us now is professor james hollifield a leading authority on immigration policy. he is director of the tower centre for political studies at smu in texas. thank you for being with us. can you tell us what sb four as it is known is and what powers it gives to the police? its is and what powers it gives to the olice? , . , ., , , police? its a bill that is designed to mimic the police? its a bill that is designed to mimic the federal police? its a bill that is designed to mimic the federal law - police? its a bill that is designed to mimic the federal law on - to mimic the federal law on immigration control and border control so crossing the border is a misdemeanour offence in federal law and this makes it a misdemeanour offence in state law, punishable by six months injail and if you are caught crossing a second time or arrested for crossing before, this is a bit different. it becomes a felony, punishable by 20 years in prison. i think the hope of