MIA 1906 s.46 Deviation
“(1) Where a ship, without lawful excuse, deviates from the voyage contemplated by the policy, the insurer is discharged from liability as from the time of deviation, and it is immaterial that the ship may have regained her route before any loss occurs.
(2) There is a deviation from the voyage contemplated by the policy -
(a) Where the course of the voyage is specifically designated by the policy, and that course is departed from; or
(b) Where the course of the voyage is not specifically designated by the policy, but the usual and customary course is departed from.
(3) The intention to deviate is immaterial; there must be a deviation in fact to discharge the insurer from his liability under the contract.
MIA 1906 s. 47 Several ports of discharge. “
(1) Where several ports of discharge are specified by the policy, the ship may proceed to all or any of them, but, in the absence of any usage or sufficient cause to the contrary, she must proceed to them, or such of them as she goes to, in the order designated by the policy. If she does not there is a deviation.
(2) Where the policy is to “ports of discharge”, within a given area, which are not named, the ship must, in the absence of any usage or sufficient cause to the contrary, proceed to them, or such of them as she goes to, in their geographical order. In she does not there is a deviation.”
exception with war peril of restraint - In the Minden ,