Some cases police do not have the luxury to take the time for a warrant when they have probable cause to go the the house. The homeowner authorized entry to police and the suspect was arrested. In some cases, their are exigent circumstances and time is of the essence. Let's say, god forbid, a family member of yours was victimized and the suspect ran into a house. Would you want the police to attempt immediate apprehension through the homeowners permission or wait for a warrant?What if the occupant is under 18, a neighbor house sitting, or a baby sitter. IMHO, they don't have the authority to consent to a search of my property. Honestly, if they arrested Fernandez for the robbery how hard would it be for them to get a warrant. Seems like laziness to me.