Nebraska Revised Statute 28-903
Chapter 28
28-903.
Refusing to aid a peace officer; penalty.
(1) A person commits the offense of refusing to aid a peace officer if, upon request by a person known to him to be a peace officer, he unreasonably refuses or fails to aid such peace officer in:
(a) Apprehending any person charged with or convicted of any offense against any of the laws of this state; or
(b) Securing such offender when apprehended; or
(c) Conveying such offender to the jail of the county.
(2) Refusing to aid a peace officer is a Class II misdemeanor.