According to the Mosaic law,the only authority to declare a leper healed was

According to the Mosaic law, the only authority to declare a leper healed was the priest. In ancient Israel, leprosy was considered a highly contagious disease and lepers were ostracized from society. The Mosaic law provided strict regulations for dealing with leprosy, and the priest played a central role in the process of determining whether someone was healed from the disease. Once a person was suspected of having leprosy, he or she would be examined by the priest who would declare them "unclean." If the person was later healed, they would need to present themselves to the priest who would perform a ritual to declare them "clean" and allow them to re-enter society.