Chicken Peppersoup

Name: Chicken Peppersoup
Ingredients: 1 tablespoon anise seeds; 1 tablespoon coriander seeds; 1 tablespoon cumin seeds; 1 tablespoon allspice berries; 1 tablespoon ground ginger; 1 tablespoon fennel seeds; 1 tablespoon Sichuan peppercorns; 1 tablespoon dried tamarind pulp; 1 teaspoon whole cloves; 1 (3-pound) chicken, cut into serving pieces; 1/4 cup freshly squeezed lemon juice; 4 cups water; 1 onion, minced; 2 cloves garlic, minced; 2 tablespoons dried bird chiles, or to taste; Salt, to taste; 4 cups chicken stock; 1/4 cup Pepper Soup Spice Mixture; 2 tablespoons minced dried smoked shrimp; 2 tablespoons chopped fresh mint; Mint sprigs, for garnish