[mytailorisrich]

An object has no legal and criminal responsibility.

If I keep you handcuffed then I am criminally responsible, not the handcuffs.

If you use a machine/tool/system to keep someone in servitude, or imprisoned, or whatnot, you are the one committing a criminal offence, not the machine.

For that to change we would probably need (a) fully autonomous AIs, and (b) that these AIs and society have reached a state such that these AIs are legally no longer considered as machines but effectively as human beings/individuals.