To accept a document or an event as conclusive of a certain status in the absence of evidence or facts which would normally be required to prove that status. For example, in matters of child support, a decision of a foreign court could be "deemed" to be a decision of the court of another for the purpose of enforcement.
DEEM
Meaning of DEEM in English
Duhaime's Law English dictionary. Английский юридический словарь Duhaime . 2012