Criminal Procedure
Section 7. Name of the accused. - The complaint or information must state the name and surname of the accused or any appellation or nickname by which he has been or is known. If his name cannot be ascertained, he must be described under a fictitious name with a statement that his true name is unknown.
If the true name of the accused is thereafter disclosed by him or appears in some other manner to the court, such true name shall be inserted in the complaint or information and record. (7a)