Аэропорт Домодедово - Задержание пассажиров

The passport control were very bad with my husband, he is foreigner, he has the resident visa, all his documents are completed with no mistake, they kept him 3 hours without asking him any question, he missed his second flight because of the passport control, when I spoke to them by phone, the police man said that all his documents are correct, but we don't know why he is traveling! ( what ann idiot reason) with no respect for foreign people in such international Airport in the Capital City of Russia, it is SHAME!