Why did the Justice Department sell a $56 million bitcoin?

Could you elaborate on the recent decision by the Justice Department to sell a $56 million bitcoin stash? What were the key factors that led to this unprecedented move? Were there any specific legal considerations or policy directives that guided this decision? Moreover, how does this sale align with the Justice Department's overall mandate of enforcing the law and protecting the public interest? Finally, what implications does this sale have for the cryptocurrency market and its future regulatory landscape? I'm particularly interested in understanding the potential ripple effects this might have on both investors and consumers.