TV program about local police unit

I’m watching a Dutch reporter on the Dutch TV who went to Miami for recording the services of the Miami Police Missing Persons Unit. In the TV program they showed how missing persons have been found. One person that has been missing has been found in an abandoned white house. She mentioned she lived in an ILF before. Id like to improve my knowledge about the world and would like learn new things. Does anyone know where this abbreviation stands for?