Davis, of Davis Investigative Group, said guests should also take precautions against hotel staff. Many hotel employees have pass keys that give them access to any room. The use of those keys can be traced, but that is often too late.
Consider the recent case of a housekeeping manager at the upscale Jumeirah Essex House hotel in New York who allegedly tried to rape an investment executive as she slept, and then stabbed and strangled her when she apparently fought back.
Davis said that somebody trying to break down a hotel door in a hallway is probably going to be noticed. But if it is an adjoining room, they have all the time and the privacy in the world.
When traveling overseas, Falkenberg said guests should worry about something else: hotel design.
International building codes and fire standards are not the same as in the United States. Try to pick a modern hotel with sprinklers. He said it's better to be high enough off the ground that people can't easily break in but not so high that fire truck ladders can't reach you.
Finally, he said, always carry a flashlight.