Any party, within the time allowed to respond to a pleading may serve and file a notice of motion to strike the whole or any part thereof. Enter the case number using correct format and ensure case name and number match the document you are filing.A motion to strike is a legal request made to a court to remove certain parts of the opposing party's pleadings. A motion to strike is filed to contest or question the legal sufficiency of any one or more of the allegations or causes of action. (e) A defendant or cross-defendant may make a motion under this section and simultaneously answer, demur, or move to strike the complaint or cross-complaint. A motion to strike a complaint or cross-complaint must be brought within thirty (30) days of service of summons. In ruling on a motion to strike, the allegations in the pleading are considered in context and presumed to be true. The matter may be heard in Department 304 of the Superior Court of California, County of San. The pleading is false; that is, untrue. Notice of Related Cases, any party may file a motion to have the cases related.