South Broward and Dade does have heroin but you really do have to know the right people, otherwise 99.9% of the time your going to get beat or get some shit thats been stepped on a thousand times. I'm from up north originally so my opinion is biased but in my experience most teens/young adults down here are either spoiled brats who can afford to spend 100 dollars on a couple roxi's then smoke them (shoots self in head) or they are shady as fuck and will beat you for ten bucks. I know sourcing isn't allowed but if you are looking for a place to cold cop dope the hoods in North Miami are the only places to go, everywhere else is crack and weed. I would seriously recommend not doing this though, before I got clean I would take a bus to O.T. and walk around cold copping. I'm sure most of you can use your imagination to create the scenarios I got myself into lol.