Section 7: Facts necessary to explain or introduce relevant facts.

Facts-
a necessary to explain or introduce a fact in issue or relevant facts;
b which support or rebut an inference suggested by a fact in issue or relevant fact;
c which establish the identity of anything or person whose identity is relevant;
d which fix the time or place at which any fact in issue or relevant fact happened; or
e which show the relation of parties by whom any such fact was transacted, are relevant in so far as they are necessary for that purpose.