[Help] Raccoon keeps pooping in my yard, how do I stop them without stopping my dog from going out there?

Until today I thought my girlfriend just wasnt picking up after the dog, but today after being out all day there has been yet more poop found, After googling different scat, we have landed on raccoon.So how do I keep raccoons out but not scaring away the dog? via /r/dogs http://ift.tt/2sESahQ