Place the fish in a fish poacher with the other kaffir lime leaves, peppercorns, lemon slices and star anise. Cover with cold water.
Place on the stove and bring to the boil. Reduce heat to simmer for 10 minutes.
Turn off the heat and leave the fish in the water to cool.
Once cool, remove the fish from the water.
Carefully peel off the skin and serve on a platter with wedges of fresh lime.