On May 12, 2013 Madeleine McCann disappeared from her family’s hotel room during their vacation in Portugal. While law enforcement in the southern European country were keen to hop on the case immediately, things went awry went two U.K. police departments also took interest in solving the suspected crime.

Could the competition between multiple law agencies have derailed the case? Check out the clip above to find out more and be sure to tune into Madeleine McCann: An ID Murder Mystery on Investigation Discovery at 9 p.m. ET on Sunday, April 7.