From Tekkenpedia

Force
Command	b+1+2
Stance
Damage	0
Hit Range	None
Properties	Repels all attacks and grabs
Move Frames		Hit Advantage
Block Advantage		CH Advantage
Chains from		Chains to
		2,2,3 ~2~2~3

Force, also called Lightning Force, is a defensive move used by Jin Kazama. He takes a simple stance and is then completely covered with his Ki power (in the form of red Lightning). When Jin began practicing tradition karate in Tekken 4, this move turned into Power Stance.

While a stand-alone move, in Tekken Tag Tournament, if partnered with Heihachi, Jin could become inbued with Omen power and perform follow-up moves while being imbued with it.