Godfather from my reading of your regs 2"is fine for his lift kit but he has to run standard sized tyres so as not too exceed the 2" overall height limit or has to front the engineering gurus for a mod plate and lane change test . He might have just been caught up in the blitz .
2" is fine here. But unfortunately the police can yellow you if they think it isn't okay. You only need to pit the vehicle to get it off. More an inconvenience than anything else.