If you carried your money electronically, the police would have nothing physical to seize. The most common form of civil forfeiture is when the police seize money or other items of value from someone transporting or holding them.
More significantly, if you have an anonymous ZCash account, the state has very little idea of how much money you have, where it is, or how you've used it; this means they don't know whether you have anything they want, or how to get it.
More significantly, if you have an anonymous ZCash account, the state has very little idea of how much money you have, where it is, or how you've used it; this means they don't know whether you have anything they want, or how to get it.