@rosborne979,
rosborne979 wrote:
So, it's more like issuing a law than an opinion?
A mufti gives a ives a formal legal opinion (fatwā) in answer to an inquiry by a private individual or a judge.
A fatwā usually requires knowledge of the Qurʾān and Ḥadīth (narratives concerning the Prophet’s life and sayings), as well as knowledge of exegesis and collected precedents, and might be a pronouncement on some problematic legal matter.
Source: Encyclopædia Britannica.