that it exists'. It is necessary to occasionally remind ourselves of this interpretation clause in the Evidence Act lest we set an artificial standard of proof not warranted by the provisions of the Act. Further, under Section 114 of the Evidence Act, the Court may presume the existence of any fact which it thinks likely to have happened, regard being had to the common course of natural events, human conduct, and public and private business, in their relation to facts of the particular case. It is also to be noticed that Section 46 of the Evidence Act makes facts, not otherwise relevant, relevant if they support or are inconsistent with the opinions of experts, when such opinions are relevant. So, corroboration may not invariably be insisted upon before acting on the opinion of an handwriting expert and there need be no initial suspicion. But, on the facts of a particular case, a court may require corroboration of a varying degree. There can be no hard and fast rule, but nothing will justify the rejection of the opinion of an expert supported by unchallenged reasons on the sole ground that it is not corroborated. (emphasis added). The approach of a court while dealing with the opinion of a handwriting expert should be to proceed cautiously, probe the reasons for the opinion, consider all other relevant evidence and decide finally to accept or reject it."