State v. Diaz, 372 N.C. 493

Defendant (born Nov. 1995) dated Julie (born July 2000); sexual relationship began when Julie was 14 and continued into 2015. Julie testified she believed defendant was born 26 Nov 1995; defendant’s indigency affidavit (signed Oct. 2015) listed his birthdate as 20 Nov 1995.
Defendant was indicted for abduction of a child, statutory rape, and sexual exploitation; trial occurred May 2016; State presented only its witnesses (including Julie) and introduced four sex recordings.
At trial the State offered defendant’s sworn affidavit of indigency to prove his age; defense objected on relevance, hearsay, confrontation, and self-incrimination grounds; the trial court admitted the affidavit as self‑authenticating under Rule 902.
Jury convicted on abduction, statutory rape, and sexual exploitation counts; defendant appealed; Court of Appeals reversed as to abduction and statutory rape, holding admission violated the Fifth Amendment and the error was not harmless.
The North Carolina Supreme Court granted discretionary review to decide (1) whether admission of the affidavit violated the Fifth Amendment and (2) whether that error was harmless beyond a reasonable doubt.

Issue	Plaintiff's Argument (State)	Defendant's Argument (Diaz)	Held
Whether admitting the affidavit of indigency (showing defendant’s DOB) violated the Fifth Amendment	Admission was proper; victim’s unobjected testimony about defendant’s age was competent and the affidavit was merely self-authenticating routine evidence	Affidavit was a compelled, testimonial statement given to obtain counsel (indigency application), so admitting it forced waiver of the Fifth Amendment	Admission violated the Fifth Amendment because defendant was compelled to provide testimonial age info to obtain counsel (Simmons/White framework)
Whether the constitutional error was harmless beyond a reasonable doubt	Error was harmless: Julie’s credible, uncontested testimony established defendant’s birth month/year and that he was >4 years older than the victim	The error was prejudicial because the affidavit gave unchallengeable sworn proof of DOB and Julie lacked documentary basis for her age testimony	Error was harmless beyond a reasonable doubt: victim’s close, uncontradicted testimony established defendant’s age sufficiently for the elements at issue; reverse the Court of Appeals’ non-harmless ruling

Gideon v. Wainwright, 372 U.S. 335 (right to counsel for indigent defendants)
Simmons v. United States, 390 U.S. 377 (compelled testimony to obtain a separate constitutional benefit creates intolerable choice)
Pennsylvania v. Muniz, 496 U.S. 582 (definition of testimonial communication under the Fifth Amendment)
Doe v. United States, 487 U.S. 201 (testimonial vs. nontestimonial statements analysis)
Chapman v. California, 386 U.S. 18 (harmless beyond a reasonable doubt standard for constitutional error)
State v. White, 340 N.C. 264 (one constitutional right cannot be surrendered to assert another)
State v. Banks, 322 N.C. 753 (routine booking questions and Ladd/Miranda analysis regarding age testimony)
State v. Soyars, 332 N.C. 47 ("reasonable possibility" test for prejudice from admitted evidence)
State v. Denny, 361 N.C. 662 (perjury conviction based on false affidavit of indigency)