cctv cameras captured the horrifying attack last april in which soldiers shaun smith , scots guard shaun smith , 25 , can be seen stamping 18 times on his head .
his fellow soldier , welsh guard jason collins , 22 , rained blows with his fists on to the man 's body .
yesterday a judge at teesside crown court made what even he admitted was an ` extraordinary ' decision to let the men walk free .