Raise It or Waive It:
There are two ways evidentiary issues become significant. Either you tried to get an exhibit accepted and the court denied you, or the opposing side submitted an exhibit and it was accepted over your objections.
Offer of Proof:
Get Your Evidence Marked For Identification:
Get a Specific Ruling From the Judge:
Alternate Theories in Your Case:
Objecting to the Memorandum of Decision:
Furthermore, once the Memorandum of Decision comes out in your case, make sure you raise concerns about any omissions, inaccuracies, or ambiguities in the decision in a timely fashion, otherwise, again, if you don't raise it, you waive it.
Assumptions in Appellate Court: