There is another possibility, that you meant this as your question instead-Assuming this is what you meant, there is a console command you can use. I'm not familiar with console, but a ton of people here are, so if this is what you meant, someone else can answer this question for you.
banBLID(%client.bl_id,"Time goes here","Reason goes here");Example:banBLID(10832,"-1","Not on my watch, AdinX");How AdinX is perma banned.