The
plaintiffs in this case were mostly
secondary victims, i.e. they were not "directly affected" as opposed to the
primary victims who were either injured or were in danger of immediate injury. The
Judicial Committee of the House of Lords, consisting of
Lord Keith of Kinkel,
Lord Ackner,
Lord Oliver of Aylmerton,
Lord Jauncey of Tullichettle, and
Lord Lowry has established a number of "control mechanisms" or conditions that had to be fulfilled in order for a
duty of care to be found in such cases. • The claimant who is a "secondary victim" must perceive a "shocking event" with his own unaided senses, as an eye-witness to the event, or hearing the event in person, or viewing its "immediate aftermath". This requires close physical proximity to the event, and would usually exclude events witnessed by television or informed of by a third party, as was the case with some of the plaintiffs in
Alcock. • The shock must be a "sudden" and not a "gradual" assault on the claimant's nervous system. So a claimant who develops a depression from living with a relative debilitated by the accident will not be able to recover damages. • If the nervous shock is caused by witnessing the death or injury of another person the claimant must show a "sufficiently proximate" relationship to that person, usually described as a "close tie of love and affection". Such ties are
presumed to exist only between parents and children, as well as spouses and fiancés. In other relations, including
siblings, ties of love and affection must be proved. • It must be reasonably foreseeable that a person of "normal fortitude" in the claimant’s position would suffer psychiatric damage. The closer the tie between the claimant and the victim, the more likely it is that he would succeed in this element. However, once it is shown that some psychiatric damage was foreseeable, it does not matter that the claimant was particularly susceptible to psychiatric illness - the defendant must "take his victim as he finds him" and pay for all the consequences of nervous shock (see
"Eggshell skull" rule). ==Significance==