London's Central Criminal Court (3,6)
I believe the answer is:
old bailey
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">london's central criminal court</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for old bailey that I've seen before include "Central Criminal Court in London" , "Courts" , "suitable for trial in London" , "London's Central Criminal Court" .)