Preparation
Rinse the fish then drain and blot dry with paper towels.
Season the fish liberally with salt and black pepper then place in a glass or ceramic baking dish.
Add the garlic and chillies then pour the lime juice over the top.
Turn a few times to ensure that they're evenly coated then place in the fridge to marinate for 90 minutes.
When ready, heat a grill or barbecue.
Drain the fish and blot dry before brushing with oil and seasoning with salt and black pepper.
Cook for about 4 minutes per side, arrange on a plate and serve with the sauces.