1. In a 4-6 quart stock pot, add garlic, olive oil and pepper and saute.
2. Coursely chop leeks, bell pepper, onion, celery, cilantro and tomatoes then put them in the stock pot. Add coriander and cumin and chicken stock.
3. Simmer 25 minutes. Rip tortillas into quarters, place into pot and continue simmering another 8-10 minutes.