Mo. Rev. Stat. § 521.210
521.210 Such writs, how entitled.
521.210. Such writs, how entitled. — Every writ of attachment sued out by virtue of either section 521.130 or 521.200 shall be entitled in the cause pending, and be in aid thereof.
(RSMo 1939 § 1452) Prior revisions: 1929 § 1288; 1919 § 1739; 1909 § 2308