Chicken tajine with olives

Ingredients :
 2 kg of chicken pestles
 4 onions
 6 cloves of garlic
 4 large tomatoes
 1 piece of fresh ginger
 1 lemon juice
 4 handles of purple olives
 6 lemons preserved by salt
 1 bouquet of chopped coriander menu
 1 tajine 30 cm in diameter

For the marinade
 1 glass of olive oil
 1 CS of turmeric
 1 CS of sweet paprika
 Guérande salt
 1 pepper tip of Cayenne
 4 saffron pistils
 pepper of the mill