If you follow bitcoin and blockchain technology loosely, you might be under the impression that the technology is for crooks. Actually, it can help capture crooks.
Ericsson - blockchain could be used for surveillance
Bitcoin has been under the microscope in recent months after the currency was in the news several times for being used to aid in illicit activities. Many believe that the anonymity that cryptocurrencies provide makes their use attractive to criminals who need to cover their tracks; but Estonian-based Guardtime claims that blockchain, the ledger-like technology that bitcoin runs on, could do just the opposite.