 Clear and convincing proof means that the evidence presented by a party during the trial must be highly and substantially more probable to be true than not and the trier of fact must have a firm belief or conviction in its factuality.In this standard, a greater degree of believability must be met than the common standard of proof in civil actions (i.e.preponderance of the evidence), which only requires that the facts as a threshold be more likely than not to prove the issue for which they are asserted.