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"I only delivered cash after seeing a job listing, and it turned out to be voice phishing. I truly didn't know — can I still be punished?" This is one of the most common criminal consultations we receive at Cheongchul. The short answer: even those who only acted as cash couriers for a part-time job often cannot escape criminal punishment. This article explains the doctrine of willful negligence, sentencing standards for voice phishing couriers, and the response principles you must follow immediately after being indicted.

[Table of Contents]

1. Why "I didn't know" isn't enough — the doctrine of willful negligence

2. Typical circumstances where intent is recognized in cash courier cases

3. Even simple couriers face prison time — sentencing as an organized crime

4. Essential response principles immediately after indictment

5. Why you need a criminal defense attorney

1. Why "I Didn't Know" Isn't Enough — The Doctrine of Willful Negligence

The most common defense in voice phishing courier cases is "I really didn't know it was voice phishing." However, Korean criminal law punishes not only direct intent but also willful negligence (dolus eventualis). Willful negligence refers to "a case where the defendant recognized the possibility that the act may constitute a crime, yet accepted that outcome and proceeded with the act."

Even if a defendant states "I wasn't 100% certain it was voice phishing," investigators and courts carefully examine whether the defendant could have reasonably recognized that the activity was not a normal part-time job. If there were circumstances that a reasonable person would have found suspicious, willful negligence may be recognized on that basis alone.

2. Typical Circumstances Where Intent Is Recognized in Cash Courier Cases

Courts have typically recognized willful negligence in the following circumstances:

• Unrealistically high compensation — receiving tens of thousands of dollars per day for simple cash delivery

• Pre-requested identification photos — being asked for ID cards or bank statements from the outset, unlike normal part-time jobs

• Immediate transfer instructions after collection — being directed to deposit collected cash into a designated account or pass it to another person immediately

• Anonymous instruction channels — receiving all instructions exclusively through anonymous channels like private Telegram or KakaoTalk groups

These conditions are abnormal signals that never occur in legitimate part-time work, and investigators frequently conclude that "the defendant at least recognized that this might not be normal employment."

3. Even Simple Couriers Face Prison Time — Sentencing as Organized Crime

Unlike ordinary fraud, voice phishing is evaluated as an organized, premeditated crime. Accordingly, the Supreme Court Sentencing Commission's standards are far heavier than for ordinary fraud cases.

In actual practice, the following trends are clear:

• Even with relatively small damage amounts, prison sentences are frequently imposed on first-time offenders

• Being a mere cash courier does not automatically guarantee a fine or suspended sentence

• When there are multiple victims or accumulated damages, sentences may be enhanced to 2-3 years or more at the first-instance trial

Therefore, do not assume safety based on "my role was small." You must work with a criminal defense attorney from the outset to develop strategies for explaining objective circumstances and preparing mitigating evidence.

4. Essential Response Principles Immediately After Indictment

If you have been indicted on suspicion of being a voice phishing courier, you must observe the following two principles.

First, never delete your phone and messenger records. Many clients make the mistake of "destroying evidence" by deleting Telegram or KakaoTalk conversations, but this is treated as evidence tampering and may justify pretrial detention. Conversely, those conversation records may contain favorable evidence demonstrating the absence of intent, such as the defendant's uncertainty about whether it was voice phishing or suspicions about the instructor's identity.

Second, your first interrogation statement determines the direction of the entire case. Statements made during the first police or prosecutorial interrogation become the strongest evidence used through trial. Facts admitted offhand or inaccurate timeline statements made in the first interrogation are extremely difficult to retract later.

5. Why You Need a Criminal Defense Attorney

Voice phishing courier cases appear simple on the surface but involve complex intertwining of willful negligence doctrine, organized crime sentencing, and pretrial detention risks. If the defendant fails to adequately explain objective circumstances, a defensible case may result in prison time.

Cheongchul Law Firm provides consistent defense from immediate post-indictment through first interrogation response, pretrial detention proceedings, and trial strategy, drawing on attorneys with extensive criminal practice experience. If you have been indicted on suspicion of being a voice phishing courier or are facing police investigation, we strongly recommend consulting a criminal defense attorney before any interrogation.

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This article is provided for informational purposes only and does not constitute legal advice for any specific case. Legal conclusions may vary depending on the facts of individual matters. For accurate review, please consult directly with an attorney.