Cryptocurrency-crime Investigation: Fraudulent use of Bitcoin in a Divorce Case

Bitcoin and cryptocurrency adoption has increased significantly over the past few years. The significant growth in the industry has been matched by growth of crimes in this domain; not only in scams and dark-web illegal trading, but also in white-collar crimes with fraud and perjury occurring increasingly. With blockchain technology, the world of financial infidelity has become increasingly sophisticated. There is a common belief that blockchain and cryptocurrency provide means of hiding funds from the public or close associates who may not be familiar with the technology. The rise of cryptocurrency has also led to spouses hiding digital assets during divorce settlements. This study presents a use case of a couple in the midst of a divorce where one of the spouses was accused of perjury for failure to declare bitcoin holdings, obtained via Bitcoin mining, and possibly other forms of cryptocurrency and digital assets to the court. The plaintiff is entitled to fifty percent of all assets. While property, stocks, bonds, and bank accounts can easily be traced, cryptocurrency assets are more complex to trace but it is not impossible. This paper illustrates how such a case can be investigated by following the flow of funds on the blockchain, using tools such as Maltego and QLUE. The paper thus presents an investigative process that can be followed for a new category of forensic investigation.