How do I find out if someone has been arrested?
Ask Mommie or Daddy, to ask a local cop, that they know, to run a check. Best way is they are a friend
You can call the police dispatch and ask. Give them the full name.
Use the Internet
There is a website for this called arestrecords.com
There is a really nice free sex offender app for your iPhone/iPod touch if that's any help