If such a ship opposes the prize-court then it must be treated as an enemy ship.
The prize-court will decide what is to be done with your cargo.
If the Trent had been taken into port, a prize-court must have liberated the prisoners.
Let us hope that the prize-court and its attendant officials did not absorb too big a share of the proceeds!
A few were released, but the larger part were condemned by a prize-court and sold.