An arrest warrant from Polk County allows police officers to detain the accused in any part of the country and regardless of the time of such arrests but these directives do not allow for search and seizure. Unless an article which is deemed as evidence is incidentally chanced upon because it is kept about the room in which the accused is holed up, it cannot be impounded.
In other words, the police do not automatically get the liberty to search a property just because they have an Polk County active warrant in their hands. However, they can gain entry into the home or the office of the offender or any public place to effect arrests. Yet, as far as third party properties go, these are off limits till the cops can get their hands on a search warrant.
When such an order is available, cops can search through the premises. If the property is owned by the accused, officers can go through every inch of the home to find incriminating items and these will be used against the suspect in the court of law just as anything that the suspect says at the time of arrest will be made to stand against him.
In Polk County, MO a warrant search can be conducted through the judiciary or the cops. Since both agencies involve themselves in the issue of arrest warrants and the eventual processing of the arrestee, it is possible to find crime history records through the county clerk's office, the magistrate's court, judicial administration or the Missouri State Highway or even the sheriff's department in your area.
The MSHP: The State Highway Patrol offers limited crime history data in response to name based inquires for a fee of $9. To use this service use the document at http://www.mshp.dps.missouri.gov/MSHPWeb/Publications/Forms/documents/SHP-158.pdf and send this to the CJIS Division, 1510 East Elm St, P.O. Box 9500, Jefferson City, MO 65102.
The office of the judicial administrator:To scour through the database of court dockets maintained by the judiciary, you can use the site of the state courts at https://www.courts.mo.gov/casenet/base/welcome.do or go to the Office of State Courts Administrator, 3425 West Truman Blvd, Jefferson City, MO 65109.