In mock trial (and real trial), why is one of the exceptions to the hearsay rule, excited utterance? what philosophy convince people that excited utterance is a valid exception? include any history behind it as well.

Excited utterance is an exception to the hearsay rule, because when people are 'excited', they usually say things that are not true. It is usually used after a 'startling event occurs' that is out of the normal. Because they are under stress, what they say is not deemed trustworthy. This rule was placed in December 1, 2015, to administer justice as fairly as possible, and to get the truth from both sides in the end.

hope this helps

Answerin vivo exposure;

That is super long dude