In this photo provided by the U.S. Coast Guard, a USCG Marine Safety Unit Chicago member and U.S. Customs and Border Protection officer simulate the apprehension of a stowaway during a law enforcement boarding.

The multi-agency boading was part of an exercise, Wednesday, hosted by MSU Chicago.  The scenario was conducted on board the Columbia Yacht Club's motor vessel Abegweit. (U.S. Coast Guard photo)