section 487.056(3)


487.056(3) If a person fails to appear as required by an order made under subsection 487.051(4) or 487.055(3.11) or a summons referred to in subsection 487.055(4) or 487.091(3), samples of bodily substances shall be taken (a) when the person is arrested under a warrant issued under subsection 487.0551(1) or as soon as feasible afterwards; or (b) as soon as feasible after the person appears at the place set out in the order or summons if no warrant is issued.