The customs of the shire or borough were often described in a separate section at the beginning of each county. These customs might involve legal statements, customary rights and services, or dues owed to the king. Almost all had financial implications, normally payments to the Crown.
There is no systematic treatment of these Customs though most are commented upon in the Domesday surveys of the Victoria County History and Alecto editions of Domesday Book or in the notes to the Phillimore edition.
See also customary dues, codes for legal matters.