Trust law in civil law jurisdictions is like a special kind of contract. It's a way a person (called the "trustee") can manage money or property owned by someone else (called the "beneficiary"). The trustee is responsible for making sure that the beneficiary's money or property is used in ways that they have agreed to. This is a way to make sure that the beneficiary's money or property is handled properly, even if the beneficiary can't manage it themselves.