There are rights and obligations that come from a valid marriage, and often, these rights and obligations come only after there is a marriage. Thus, there may be a need to establish the existence of the marriage first before the right or obligation could be claimed. The best way to prove the existence of something is to use the official record reflecting the proceeding or the ceremony, and the public record of marriage is a marriage record, such as Duval County Marriage Records, which are supposed to be public records and as such, are supposed to be available to the public at all times.
At the core of Marriage Records Duval County would be a valid marriage license which must be applied or by those who are parties to the marriage. Of course, a valid marriage license does not really conclusively prove that the marriage existed because the marriage license would not reflect the celebration of the marriage. Thus, marriage records contain far more than just the marriage license. In any case, a marriage record could be used in a number of proceedings, including private proceedings. In public proceedings, marriage records are used not only for cases involving family law, but even criminal and civil law.