In relation to
insurance, the
law
prevents people taking out an insurance contract on someone
else's life (or someone else's property) unless they have an
insurable interest in that life.
Valid forms of insurable interest include being a spouse, or being financially dependent on the person.
This concept of insurable interest was established to prevent:
- gambling (on the lives of others), under the pretence of being insurance
- the moral hazard of people taking out insurance on someone's life, and then "arranging" for that person to die - so that they can claim on the policy
In the UK this aspect of law depends on statute law: see the Life Assurance Act, 1774 which renders such contracts illegal, and the Marine Insurance Act, 1906, s.4 which renders such contracts void.