Woofun AI reports that Sun Shengbin of the Wenzhou Public Security Bureau and Lou Yandi of the Zhejiang Provincial Public Security Department published a technical paper in Criminal Technology on June 4th. The document details investigation procedures for virtual currency assets, including device cracking, evidence collection, and asset seizure.

The methods such as tracing transaction fees to exchanges like Binance to access user data. The methods legal channels, police can obtain KYC records from Binance, OKX, and HTX. Authorities may freeze accounts for six months, with extensions possible. The guidelines mandate that investigators must not retain private keys, requiring strict separation of case handling and key management alongside comprehensive oversight.