Immunity in exchange for testimony. Is that witness tampering?

[ShootSpeeders]

They tell you 'We're gonna lock you up for 20 years unless you help us convict so-and-so". How can that not be blackmail and witness tampering?

 

[Nutz]

Cheaper and easier than a lengthy trial to plea bargain. Who cares. They are felons anyway. You finally kill a black person? Are they making you an offer to rat on your Grand Wizard?