Arrest, Search, Seizure, Warrant confused

[katresel]

my husband was taken into custody by our local police stating he had a parole warrent fron 2 years ago. the county never produced the warrent but held a detainer on him. there are no new charges. we actually got in a car accident(not our fault) and the police ran all of our names and it came back a warrent. the parole officer that filed this warrent is retired and his initial maximum date expired 8/20/05 he hasnt been in any trouble, has a job and is now married... my question is can the hold him even if no warrent has been produced.? theyfiled a violation report for failure to report, complete a program and failure to report change of address. but his address has never changed. can you hepl me out?