804.2  Contents of arrest warrant.
  The warrant must be directed to any peace officer in the state; give the name of the defendant, if known to the magistrate; if unknown, may designate “name unknown”; and must state by name or general description an offense which authorizes a warrant to issue, the date of issuing it, the county or city where issued, and be signed by the magistrate with the magistrate’s name of office.
[C51, §2828, 2829; R60, §4535, 4536; C73, §4187, 4188; C97, §5184; C24, 27, 31, 35, 39, §13462; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, §754.5; C79, 81, §804.2]
See 
R.Cr.P. 2.36
 – Forms 5, 6, 7