Foundation

Huddleston v. United States, 485 U.S. 681 (1988)

Held that the trial court need not make a preliminary finding that the government proved a conditional fact (such as a prior act) by a preponderance before submitting it to the jury under Rule 104(b).

Bourjaily v. United States, 483 U.S. 171 (1987)

Established that courts may consider the hearsay statement itself in determining whether foundational facts for a hearsay exception have been established under Rule 104(a).

What does it mean to lay a foundation for evidence?

Laying a foundation means establishing the preliminary facts necessary to show that evidence is what it purports to be and is admissible. This includes showing that a witness has personal knowledge, that a document is authentic, or that an expert is qualified to give an opinion.

What happens if an attorney fails to lay proper foundation?

If proper foundation is not established, the court will sustain a foundation objection and exclude the evidence. The attorney may be given an opportunity to cure the deficiency by asking additional foundational questions before the evidence can be admitted.

What is the difference between foundation and authentication?

Authentication is a subset of foundation. Foundation is the broader concept encompassing all preliminary showings required for admissibility — including personal knowledge, expert qualifications, and chain of custody. Authentication specifically concerns proving that an item of evidence is genuine and is what its proponent claims.