The Council of the People's Commissars issued the Decree on Red Terror. I couldn't find its full text in English translation and I thought it might be interesting for you to see it.
The Council of the People's Commissars
5 September 1918
On Red Terror
The Council of the People's Commissars, having heard the report of the Chairman of the All-Russian Extraordinary Commission for Combating Counter-Revolution, Profiteering and Corruption on the activity of this commission, finds that in the current situation securing the back areas by terror is an absolute necessity; that to intensify the efforts of the All-Russian Extraordinary Commission for Combating Counter-Revolution, Profiteering and Corruption and to increase the planned element in this activity it is necessary to delegate to this commission as many responsible party comrades as possible; that it is necessary to secure the Soviet Republic from the class enemies by isolating them in concentration camps, that all persons participating in the White Guard organizations, conspiracies and rebellions must be executed by shooting, that the names of the executed and the reasons of the execution must be made public.
The People's Commissar of Justice D. Kursky
The People's Commissar of Home Affairs G. Petrovsky
The Administration Manager of the Council of the People's Commissars V. Bonch-Bruevich