State v. Benito Razo-Chavez, 364 P.3d 291

Defendant Benito Razo-Chavez was stopped for speeding; officers searched his car and found a small bag with orange powder residue and a straw.
Defendant initially said the residue was candy, then admitted it was Suboxone (buprenorphine); officers and a forensic analyst observed the residue appeared to be Suboxone.
GC-MS testing (after rinsing the bag with methanol) detected both buprenorphine and oxycodone; State charged Defendant with felony possession of oxycodone.
At trial Defendant testified he believed the bag contained only Suboxone and was unaware of oxycodone; defense argued he at most believed he possessed buprenorphine (a misdemeanor), not oxycodone (a felony).
The district court rejected the approved Idaho Criminal Jury Instruction (ICJI 403) and instead instructed the jury that the mens rea required was that the defendant either knew it was oxycodone or believed it was oxycodone (narrower than ICJI 403). The jury convicted; sentence was imposed.
The State appealed solely to challenge the district court’s mens rea instruction; it did not seek reversal or resentencing and asked only that the instruction be disapproved for future use.

Issue	Plaintiff's Argument (State)	Defendant's Argument (Razo-Chavez)	Held
Whether the jury-instruction dispute is moot	Appeal not moot; instruction was erroneous and should be corrected	Not directly argued; appeal presents live issue about future instructions	Dismissed as unnecessary because any error was harmless; no need to reach mootness
Whether district court erred by altering ICJI 403 mens rea language	The proper mens rea is knowledge of the substance or belief it was a controlled substance (not belief it was specifically oxycodone)	Jury should be instructed that defendant must have known or believed the substance was oxycodone	Even if the district court erred, error was harmless because jury convicted under the narrower instruction—result would be same under ICJI 403

State v. Severson, 147 Idaho 694, 215 P.3d 414 (stated standard of review for jury instructions)
State v. Thompson, 132 Idaho 628, 977 P.2d 890 (harmless-error standard; whether error contributed to verdict)
State v. Parker, 157 Idaho 132, 334 P.3d 806 (harmless-error analysis)
Chapman v. California, 386 U.S. 18 (harmless-error beyond a reasonable doubt standard)
State v. Johnson, 148 Idaho 664, 227 P.3d 918 (harmless-error discussion)
State v. Neal, 155 Idaho 484, 314 P.3d 166 (describing possession requires knowledge of possession and either identity or that it is a controlled substance)