Ipse Dixit is a weakest form of argument. It means 'Believe this to be so because I say so'
Lawyers often argue like these :
"Believe me Sir, I have personally checked records and I sincerely believe that there is something suspicious here."
Or
"Sir, I would not have argued unless I have a strong case. Therefore let me continue...."
Or
"Sir, let me argue this for my own satisfaction"
These are some of the Ipse Dixit weak arguments. The clients sitting in gallery become pleased with such arguments. But they do not carry matter further.
Haresh Raichura 1/12/16