When surveillance state flagging algorithms spotted them depositing suspicious amounts of money just below the $10,000 required federal reporting limit into their bank account, a necessity for the Dehkos because their insurance only covered up to $10,000 in losses, they were red flagged by automated monitoring systems as possible money launderers.
Their $35,000 was subsequently seized after the IRS filed a secret warrant (a lot of that going around these days) accusing them of “structuring.” Because of the nature of civil forfeiture laws they now have to fight for their own money and prove their activities were legal. The IRS required no proof whatsoever.