Requiring children in need of protection removed from the home to be placed with relatives upon parent request; specifying certain requirements of peace officers or social service agencies for placement of the child with a suitable person other than a relative, requiring good faith attempts to place the child with relatives and certain findings and documentation; requiring a juvenile court hearing in cases of inability to place the child with a relative within a certain number of hours of removal; authorizing civil actions in district court for law enforcement agency noncompliance with the requirements (ra)