Here are a few articles on the case:

There was even more money in Freeman’s home, seized by federal agents and later reported to the courts in a forfeiture filing: $180,000 in cash, a 100oz Swiss silver bar (worth roughly $3,000), and a platinum coin stamped with a portrait of Ron Paul. There were boxes full of gold-laced bills called goldbacks that were too obscure to even put a value on — some taken from Freeman’s home, others seized in transit by the postal service. The biggest prize was two Casascius physical Bitcoins, worth 100 and 1 btc respectively, first available in 2011 and now worth more than $4 million.

For years, they had been tracking his Bitcoin business for evidence of money laundering or other crimes. As far as they were concerned, it was all part of an unlicensed money transmittal scheme processing millions of dollars a year. The purpose of the raid was to break that system, tearing out Freeman’s Bitcoin machines one by one and seizing any illegal proceeds along with them.

Libertarians built a Bitcoin economy in a small New Hampshire town — then feds tore it down #720 https://www.theverge.com/22599932/bitcoin-raid-keene-new-hampshire-ian-freeman-libertarian-prosecution