Las Vegas arrest records are generally not public ... but there are exceptions. Criminal background checks in Nevada show arrests from the preceding seven years. In most cases though, you need to give your permission before an employer, landlord, or other person can run a third-party background check on you. (Note that background checks in Nevada show all of a person's convictions, even if they go back for more than seven years.) In addition, the arrest records of people currently in custody at the Clark County Detention Center or Las Vegas City Jail are viewable online when you search their names. When the inmate is released from custody, then their arrest record disappears.