Though things have improved in recent years, you´re still likely to encounter some ungainly queues at the foreign police. On a good day you may be in and out in a matter of minutes, but be prepared to wait at least two hours – possibly longer. At the very least, make sure you have an entire morning or afternoon free. I´m informed that since certain things (residency renewals/extensions, etc.) are handled on a quarterly basis, and people usually wait until the last minute to do these things (residency extensions must be filed 14 days before the old one runs out, by the way), the queues are longest at four times during the year: the months of March, June, September, and December. If at all possible, it´s recommended to avoid taking a trip to the foreign police during these months. However, the days of having to camp out overnight just to get inside the building are no more – queues at the foreign police are no longer comparable to those of a Star Wars film (though visitors may leave feeling just as depressed as viewers of the latest additions to George Lucas´ opus).