United States v. Guanghua

District Court, District of Columbia·Decided August 1, 2025·No. Criminal No. 2023-0091·Published

Opinion

UNITED STATES DISTRICT COURT FOR THE DISTRICT OF COLUMBIA

UNITED STATES OF AMERICA, v. JIN GUANGHUA, Criminal Action No. 23-91-2 (CKK) Defendant.

MEMORANDUM OPINION (August 1, 2025)

Defendant Guanghua Jin faces a twelve-count indictment charging him with participation

in a bank-fraud, money-laundering, and sanctions-evasion conspiracy. Jin moves the Court under

the Fourth Amendment and Franks v. Delaware, 438 U.S. 154 (1978), to hold an evidentiary

hearing to determine whether to exclude evidence seized in connection with the execution of a

search and seizure warrant on his email account. For the reasons that follow, the Court shall

DENY Jin’s motion.

I. BACKGROUND

The Government alleges that Jin, a Chinese national and Australian resident, conspired

with several others between 2009 and 2019 to commit bank fraud, launder money, and evade U.S.

sanctions on North Korea. See Indictment, ECF No. 13. In simplified form, Jin’s alleged scheme

was as follows: Jin and his co-conspirators Qin Guoming and Han Linlin operated a series of

companies, many of which had names including the word “Winney” (collectively, the “Winney

Entities”). The Winney Entities brokered sales of products—principally bulk shipments of raw

tobacco—from international suppliers to North Korean entities through U.S. dollar-denominated

transactions that relied on correspondent banking services from U.S. financial institutions.

1 Because U.S. financial institutions would not knowingly process transactions for these entities due

to anti-money laundering restrictions, and because the United States imposed country-wide

sanctions against North Korea in 2016, Jin and the Winney Entities falsified shipping records and

routed transactions through front companies in an effort to make it appear as if the shipments were

being made in furtherance of legitimate trade with China. In sum, the Government alleges that,

through the Winney Entities, Jin conspired to and did defraud U.S. financial institutions, helped

North Korean entities illegally access the U.S. financial system, and launder the proceeds of those

activities.

During its investigation into Jin and his co-conspirators, the Government sought a warrant

to search and seize the contents of five email accounts, including the account identified as

“jinguanghua2014@gmail.com.” See Mot. to Suppress and for Franks Hearing Ex. 1, ECF

No. 46-1 at 2–5 (March 14, 2025). In its warrant application, the Government represented that it

had reason to believe the target email accounts contained evidence of a crime, namely violations

of 50 U.S.C. § 1705 (evasion of sanctions under the International Emergency Economic Powers

Act) and 18 U.S.C. § 1956 (money laundering). ECF No. 46-1 at 2. On December 10, 2019,

Magistrate Judge Robin M. Merriweather determined that the Government had demonstrated

probable cause for the search and issued a warrant authorizing the search and seizure of the target

email accounts. Id. at 2.

In finding probable cause, Magistrate Judge Merriweather relied on an affidavit in support

of the Government’s warrant application sworn out by FBI Special Agent Joy Gallante. See ECF

No. 46-1 at 3, 16-17. The Court will discuss the details of Agent Gallante’s affidavit in greater

detail below, but in broad strokes, and as relevant to Jin’s email account, Agent Gallante’s affidavit

offers five categories of support for the warrant application: (1) background information about

2 North Korean commerce and U.S. sanctions against North Korea (id. ¶¶ 7–18); (2) information

gleaned from Government interviews with Cooperating Company 1, 1 a bulk tobacco seller that

had done business with the Winney Entities (id. ¶¶ 18–21); (3) information revealed from

subpoena returns from Cooperating Company 1 and financial institutions (id. ¶¶ 26–29); (4)

information learned during the course of an undercover investigation, including a meeting between

Jin and undercover agents (id. ¶¶ 22–25); and (5) information returned from prior court orders

under 18 U.S.C. § 2703(d) (id. ¶¶ 33–35).

Jin filed the instant [34] Motion for a Franks Hearing and to Suppress the Fruits of Email

Search Warrant (“Def.’s Mot.”), arguing that Agent Gallante’s affidavit contains materially false

statements and omissions that, if corrected, would have precluded Magistrate Judge

Merriweather’s probable-cause determination. The Government opposed Jin’s motion. See

Gov’t’s Opp’n, ECF No. 64. And Jin replied. See Def.’s Reply, ECF No. 73. The matter is ripe

for review.

II. LEGAL STANDARD The Fourth Amendment prohibits “unreasonable searches and seizures” and provides that

“no Warrants shall issue, but upon probable cause, supported by Oath or affirmation.” U.S. Const.

amend. IV. The Supreme Court has described the task of evaluating probable cause as “a practical,

common-sense decision whether, given all the circumstances set forth in the affidavit . . . there is

a fair probability that contraband or evidence of a crime will be found in a particular place.”

Illinois v. Gates, 462 U.S. 213, 238 (1983). “When police obtain evidence by way of an unlawful

1 Cooperating Company 1 is Cooperativa de Tabacaleros de Jujuy. Elsewhere, the parties have agreed that Cooperating Company 1 need not be referred to pseudonymously moving forward. See Mem. Op. & Order, ECF No. 96, at 3–4. But Cooperating Company 1’s identity is immaterial to Jin’s motion. And Agent Gallante’s affidavit and the parties’ briefs use the pseudonym. So, for ease of reference, the Court does the same here.

3 search, the exclusionary rule may require exclusion of that evidence in some circumstances.”

United States v. Glover, 681 F.3d 411, 418 (D.C. Cir. 2012).

But “the exclusionary rule has limited force in cases involving a search with a search

warrant.” Glover, 681 F.3d at 418. In United States v. Leon, 468 U.S. 897 (1984), the Supreme

Court instructed that, subject to narrow exceptions, courts may not exclude evidence “when an

officer acting with objective good faith has obtained a search warrant from a judge or magistrate

and acted within its scope.” Id. at 920. One exception to Leon’s default rule arises when “the

magistrate or judge in issuing a warrant was misled by information in an affidavit that the affiant

knew was false or would have known was false except for his reckless disregard for the truth.”

Leon, 468 U.S. at 923.

That exception, which Jin invokes here, was originally set forth in Franks v. Delaware,

438 U.S. 154 (1978). Under Franks, if a defendant makes a “substantial preliminary showing,”

the court must hold an evidentiary hearing to determine whether the fruits of the warrant should

be excluded. 438 U.S. at 155–56. In this Circuit, the substantial preliminary showing necessary

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