How can I effectively use a dog whistle to train and manage aggressive dogs?

To effectively use a dog whistle to train and manage aggressive dogs, start by selecting a high-frequency whistle that is audible to dogs but not humans. Use the whistle to create a consistent signal for commands and rewards during training sessions. When the dog exhibits aggressive behavior, use the whistle to interrupt and redirect their focus. Consistent training and positive reinforcement with the whistle can help modify the dog's behavior over time. Remember to consult with a professional trainer for guidance on using a dog whistle effectively for aggressive dogs.