forensic: preponderance of the evidence

The level of proof required in most civil cases. The plaintiff will prevail if his or her case has the greatest weight of the evidence or can be shown to be more probable than the defendant's case.*

Also: medical degree of certainty, more likely than not

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*Committee on Psychiatry and Law, of the Group for the Advancement of Psychiatry The Mental Health Professional and the Legal System Paperback 1992 American Psychiatric Press