  We prove that $L$-functions from Langlands-Shahidi method in the case of
$GSpin$ groups over a non-Archimedean local field of characteristic zero are
Artin $L$-functions through the local Langlands correspondence. It has an
application on the proof of a weak version of the generic Arthur packet
conjecture. Furthermore, we study and describe a local $L$-packet that contains
a generic member in the case of $GSpin$ groups. Using this description of a
local $L$-packet, we strengthen a weak version of the generic Arthur packet
conjecture in those cases (local version of the generalized Ramanujan
conjecture).
