When is it appropriate to use the statement Subscribed and sworn to before you?

The statement "Subscribed and sworn to before you" is typically used in legal contexts when a person is affirming the truth of a document or statement in the presence of an authorized official, such as a notary public or a judge. It indicates that the individual has formally declared the contents of the document to be true and has done so under oath. This statement is often included in affidavits, declarations, or other legal documents to ensure their validity and to provide a legal basis for the assertions made within them.