Deportation statistics for the most recent year are not currently available. In fact, it is estimated that deportation in the United Sates is on the increase in many states, but there are no firm statistics to be compared to previous years. There have been changes to laws in many states which allow for a quicker deportation process. For example, some counties in Arizona report an increase in deportation statistics. Arizona is just one state which has enacted tougher laws to prevent immigrants from remaining in the state when they have no legal documentation. In states such as Arizona, police officers may ask for proof of citizenship at any time and without cause. Those that are unable to provide proof of citizenship can immediately be deported.