54 The only flares authorized for carriage on
board ship are intended for use if the ship is in distress and is
in need of immediate assistance. As with the unwarranted use of the
distress signal on the radio (see paragraph 43 above), use of distress
flares simply to alert shipping rather than to indicate that the ship
is in grave and imminent danger may reduce their effect in the situations
in which they are intended to be used and responded to. Radio transmissions
should be used to alert shipping of the risk of attacks rather than
distress flares. Distress flares should only be used when the master
considers that the attackers’ actions are putting his/her ship
in imminent danger.