Statutes | Confederated Tribes of the Umatilla Indian Reservation Sex Offender Code Chapter 5 ยง 5.05 | 2019
A.   Failure to Appear.  In the event a sex offender fails to register with the tribe as required by this code, the tribal police or designee shall immediately inform the jurisdiction that provided notification that the sex offender was to commence residency, employment, or school attendance with the tribe that the sex offender failed to appear for registration. 
B.   Absconded Sex Offenders.  If the tribal police or designee receives information that a sex offender has absconded the tribal police shall make an effort to determine if the sex offender has actually absconded.
          1.   In the event no determination can be made, the tribal police or designee shall ensure the tribal police and any other appropriate law enforcement agency is notified.
          2.   If the information indicating the possible absconding came through notice from another jurisdiction or federal authorities, they shall be informed that the sex offender has failed to appear and register.
          3.   If an absconded sex offender cannot be located then the tribal police shall take the following steps:
               a.   Update the registry to reflect the sex offender has absconded or is otherwise not capable of being located,
               b.   Seek a warrant for the sex offender&rsquos arrest, and in the case of a non-Indian, the U.S. Marshals Service or FBI shall be contacted in an attempt to obtain a federal warrant for the sex offender&rsquos arrest,
               c.   Notify the U.S. Marshals Service,
               d.   Update NSOR to reflect the sex offender&rsquos status as an absconder, or is otherwise not capable of being located,  
               e.   Enter the sex offender into the National Crime Information Center Wanted Person File.
C.   Failure to Register.  In the event a sex offender who is required to register due to their employment or school attendance status fails to do so or otherwise violates a registration requirement of this code, the tribal police or designee shall take all appropriate follow-up measures including those outlined in Section 5.05(B).  The tribal police or designee shall first make an effort to determine if the sex offender is actually employed or attending school within the exterior boundaries of the reservation or on property owned by the tribe in fee or trust regardless of location