It should be()that any maritime liens attaching to the ship at the time of her arrest have priority over the claim for which she was arrested.
At common law the Shipowner has possessory liens on the cargo for().
Liens may be created by the contract()they do not exist at common law.
The Shipowner may do what is reasonable()any of these liens in view of the fact that they are possessory liens,i.e. they can only be enforced by retaining actual or constructive possession of the cargo.