What are the forms of lawth (circumstantial evidence) according to the four schools of thought, and what are its disclaimers?

"Qasāmah" refers to repeated oaths taken in a claim involving the murder of an inviolable person. This practice originated in the pre-Islamic era (Jahiliyyah) and was affirmed by the Prophet Muhammad (peace be upon him) in Islam. "Al-Lawth" is a circumstantial evidence that raises suspicion, and it is a condition for Qasāmah. Qasāmah becomes void upon an explicit or implicit absolution (Ibrā’), or if a man confesses to being the killer, or if evidence is established that the killer is someone other than the accused. If Qasāmah is rendered void, the claimant must return any blood money (Diyyah) they had received.