Full of technical details, from mnemonic phrases to cross-chain tracking, this process truly masters on-chain evidence collection.

According to the South China Morning Post, Sun Shengbin of the Wenzhou Public Security Bureau and Lou Yandi and his team from the Criminal Investigation Corps of the Zhejiang Provincial Public Security Department disclosed the process of tracking, seizing, and freezing illegal virtual assets in the journal *Forensic Science and Technology*. Evidence collection includes full disk scanning of devices, intelligent filtering, and mnemonic phrase retrieval; on-chain tracking reveals fund flows through fee backtracking, cross-chain analysis, and mixing timestamp comparisons; asset disposal involves transferring private keys to multi-signature wallets or coordinating with exchanges to freeze accounts.