Upon finding that Haji Saman was living in Kimanis and that he was involved in the plotting that caused Hashim's death, Brooke departed there and destroyed his house although Saman still managed to escape. Brooke returned again to Brunei and finally managed to induce the Sultan to return to the capital where the Sultan finally regretted the killings of Hashim, his brother and their family members by writing a letter of apology to Queen Victoria. Through his confession, the Sultan recognised Brooke's authority over Sarawak and mining rights throughout the territory without requiring him to pay any tribute as well granting the island of Labuan to the British. Brooke departed Brunei and left Mumin in charge together with Mundy to keep the Sultan in line until the British government made a final decision to acquire the island. Following the ratification agreement of the transfer of Labuan to the British, the Sultan also finally agreed to allow British forces to suppress all piracy along the coast of Borneo.