Nebraska Revised Statute 43-248
A peace officer may take a juvenile into temporary custody without a warrant or order of the court and proceed as provided in section 43-250 when:
(1) A juvenile has violated a state law or municipal ordinance and the officer has reasonable grounds to believe such juvenile committed such violation;
(2) A juvenile is seriously endangered in his or her surroundings and immediate removal appears to be necessary for the juvenile's protection;
(3) The officer believes the juvenile to be mentally ill and dangerous as defined in section 71-908 and that the harm described in that section is likely to occur before proceedings may be instituted before the juvenile court;
(4) The officer has reasonable grounds to believe that the juvenile has run away from his or her parent, guardian, or custodian;
(5) A probation officer has reasonable cause to believe that a juvenile is in violation of probation and that the juvenile will attempt to leave the jurisdiction or place lives or property in danger; or
(6) The officer has reasonable grounds to believe the juvenile is truant from school.
Laws 1981, LB 346, § 4;
Laws 1997, LB 622, § 64;
Laws 2004, LB 1083, § 93;
Laws 2010, LB800, § 14.