In a bowl, combine the juniper, chile, salt, pepper, and flour.
Add the lamb to coat.
Heat a large saucepan, add the oil, add the lamb (reserving any remaining marinate), stirring constantly until browned; 3-4 minutes.
Add the corn, scallions and bell peppers, stir and cook 1 minute.
Add the stock or water with the remaining marinate, add to the saucepan. Bring to a boil, reduce to a simmer, partially covered, and cook for 1 to 1 1/2 hours until lamb is very tender.
Adjust seasonings.
Serve with tortillas.