"I am of opinion that the evidence was properly
disallowed, as not being relevant to the issue.
It is not easy in all cases to draw the line,
and to define with accuracy where probability
ceases and speculation begins: but we are bound
to lay down the rule to the best of our ability.
No doubt, the rule as to confining the evidence
to that which is relevant and pertinent to the
issue, is one of great importance, not only as
regards the particular case, but also with
reference to saving the time of the court, and
preventing the minds of the jury from being
drawn away from the real point they have to
decide. This rule is nowhere more clearly laid
down than in the very able treatise by Mr Best
upon the Principles of Evidence, second edit.
'Of all the rules of evidence,' he says, 'the
most universal and most obvious is this, - that
the evidence adduced should be alike directed
and confined to the matters which are in
dispute, or form the subject of investigation.
Its theoretical propriety can never be matter of
doubt, whatever difficulties may arise in its
application. The tribunal is created to
determine matters in dispute between contending
parties, or which otherwise require proof; and
anything which is neither directly nor
indirectly relevant to those matters ought at
once to be put aside, as beyond the jurisdiction
of the tribunal, as tending to distract its
attention and to waste its time.' . . .
Now, it appears to me that the evidence proposed
to be given in this case, if admitted, would not
have shewn that it was more probable that the
contract was subject to the condition insisted
upon by the defendant."