Chapter 5. Weight Of Evidence Generally of California Evidence Code >> Division 3. >> Chapter 5.
As used in this chapter, "direct evidence" means evidence that
directly proves a fact, without an inference or presumption, and
which in itself, if true, conclusively establishes that fact.
Except where additional evidence is required by statute, the
direct evidence of one witness who is entitled to full credit is
sufficient for proof of any fact.
If weaker and less satisfactory evidence is offered when it
was within the power of the party to produce stronger and more
satisfactory evidence, the evidence offered should be viewed with
distrust.
In determining what inferences to draw from the evidence or
facts in the case against a party, the trier of fact may consider,
among other things, the party's failure to explain or to deny by his
testimony such evidence or facts in the case against him, or his
willful suppression of evidence relating thereto, if such be the
case.