This dude has some record. He had a role in a crime ring that stole more than 100 laptops from Detroit Public Schools. His own lawyer said Sims served as the "middleman" in the operation which got him a felony conviction.
The Dolphins put a lot into "high character" guys. Looks like with Sims they looked the other way on this.
Ireland discussed this in his presser. Said that they did their due diligence, talked to the kid, talked to others etc and decided to go ahead with drafting him. Philbin has a history of giving guys a second chance, but if they screw it up cutting ties with them quickly. He better not slip up.