Arrests Linked to Impersonation Scheme

Tokyo Metropolitan Police have arrested two individuals on suspicion of involvement in a cryptocurrency fraud operation that targeted a Japanese woman in her 40s. The suspects, identified as 31-year-old Saki Okayama and 38-year-old Mitsuki Minamisawa, allegedly took part in a scheme in which callers impersonated police officers to coerce the transfer of digital assets.

According to investigators, the victim received a telephone call from a man claiming to represent the Osaka Prefectural Police. The caller stated that her bank card had been discovered in connection with a major money-laundering investigation. The alleged case was described as involving roughly 600 billion yen in losses and approximately 400 accounts used to move illicit funds.

The woman was warned of imminent arrest and instructed to prove her innocence by transferring her cryptocurrency holdings. She complied, sending assets valued at 81 million yen, equivalent to about $515,000. Authorities have not publicly named the specific cryptocurrencies involved or the wallet addresses that received the funds.

Broader Network and Overseas Operations

Police believe the two arrested suspects participated in a wider fraud network responsible for confirmed losses totaling around 240 million yen, or nearly $1.5 million. Investigators suspect the operation was directed from Cambodia, more than 4,000 kilometers from Japan, and that a Chinese national led the group.

The distance and international structure of the suspected ring create significant challenges for tracing the movement of stolen assets and identifying additional participants. Tokyo police continue to examine communications, payment routes, and other links that may connect the arrested individuals to further cases.

Rising Losses from Fake Police Frauds

The case occurs against a backdrop of increasing financial damage from scams in which perpetrators pose as law enforcement officers. Japan’s National Police Agency recorded 61.71 billion yen in losses from fake police schemes during the first seven months of 2026, involving 5,422 reported cases. While the number of incidents declined slightly compared with the previous year, the monetary losses rose by more than 25 percent.

Overall special-fraud losses reached 210.81 billion yen through July 2026, an increase of nearly 43 percent from the same period a year earlier. The average loss in completed fake police cases during the first half of the year stood at about 11.64 million yen, making the 81 million yen transfer in this cryptocurrency incident substantially larger than the typical amount.

Separate recent incidents have followed similar patterns. In one September case, a man in his 70s lost approximately 73 million yen after callers claiming to represent Tokyo Metropolitan Police directed him to move funds to establish his innocence. In another, a woman in her 70s in Gifu Prefecture transferred cryptocurrency worth 39.29 million yen and an additional 2 million yen in cash after being told to convert assets for an investigation.

Ongoing Investigation and Regulatory Response

Neither suspect has been convicted. Both remain under investigation for their alleged roles in the fraud network. Authorities are assessing the full scope of potential victims and the extent of overseas coordination.

Japanese regulators have responded to the surge in fraud by asking cryptocurrency exchanges to strengthen controls. Measures under consideration include delayed withdrawals for newly registered addresses, enhanced monitoring of unusual account activity, and faster responses when police flag suspicious transactions. Exchanges have also been urged to improve phishing-resistant authentication methods.

The Cambodia connection aligns with a wider regional pattern of fraud operations based in overseas compounds. Japanese and other Asian law-enforcement agencies continue to pursue cross-border networks that use telephone pressure tactics and digital assets to extract funds from victims.