Sweet response. The Act has nothing to do with it, that is just your opinion. Talk about them being detained prior to the Act is nonsense talked by people with a baseline understanding of the law.
The courts ruled it was a State of War and the Provisional Government could use “force if necessary” to stop the State being overthrown. The Anti treaty IRA specified aim was this. These men had attempted to overthrow the State. The cabinet approved this. The end.
It never ceases to amaze me how someone like you (someone who I assume had a grandad on one side so is disposed to defending them) can pick out a portion of someone’s life (WT Cosgrave’s cabinet ordering an execution when they had the power to do so) that you don’t like, but will describe the 4 executed here as great men. These were men whose actions directly and indirectly led to the killing of civilians. Who ignored democracy. Yet, they’re much better than the man who helped establish a State and handed power over peacefully. Boggles the mind.