Prepare the dry rub by combining the spices
Rub the spices all over the chicken
Place chicken in the slow cooker
Add a bay leaf to the bottom
Place lid on and Cook in slow cooker on low for 6-8 Hours or high for 3-4 hours, Basting occasionally
When the chicken is done cooking remove it and shred the chicken using forks or kitchen claws. Note - Chicken's internal temp. should be 165 degrees Fahrenheit and meat should be white
In a large saucepan, heat chicken juices from the slow cooker, enchilada sauce, garlic powder, and tomatoes in a saucepan until boiling
Reduce heat and simmer for a few more minutes
Add shredded chicken until warmed through
Optional: You can transfer the chicken and juices back to the slow cooker and place it on warm for keeping it warm and serving large crowds
Serve on warmed tortillas with your favorite taco toppings