If the requirements is to have three different people press three buttons, and one out of the three doesn’t agree to participate, they can’t follow the process and nothing happens.
I don’t think it’s a requirement to have all 3 buttons pressed. It’s not a fail-safe, the purpose is to obscure who is responsible. So I assume two of the buttons are duds and one is live. And they probably randomly rewire them before every execution.
If the requirements is to have three different people press three buttons, and one out of the three doesn’t agree to participate, they can’t follow the process and nothing happens.
I don’t think it’s a requirement to have all 3 buttons pressed. It’s not a fail-safe, the purpose is to obscure who is responsible. So I assume two of the buttons are duds and one is live. And they probably randomly rewire them before every execution.