On 6/4/19 at 6:15 p.m., the Plymouth County Sheriff's Office arrested Zachary Alan Nilles, age 20 of Akron, Iowa, for two active Plymouth County warrants.  The first warrant is for violation of probation with an original charge of sex offender registration violation first offense.  The second is for violation of probation with an original charge of sex offender registration violation second offense.  Nilles was booked into the Plymouth County Jail and held on $15,000 bond.