Mix spices and salt in a small bowl. Cover chicken pieces with the spices.
Heat evoo in a heavy pot or tagine. Add chicken and cook on all sides until browned, in batches if needed. Remove the chicken from the pot.
Add the onion and garlic and cook for 5 minutes. Pour in the broth and stir. Add the chicken and bring to a boil. Then cover, reduce heat to medium-low, and cook for 25 minutes.
Squeeze the lemons into the pot and add the rinds. Add the olives. Cook for 10 more minutes on high heat, uncovered. Garnish with chopped parsley and serve with couscous.