MIR 2.8.8

A  Recognised  Body  which  permits  its  Members  to  allow  their  Clients  to  have  Direct Electronic Access to its trading facilities must:

(a) set  appropriate  standards  regarding  risk  controls  and  thresholds  on  trading through Direct Electronic Access;
(b) be able to identify orders and trades made through Direct Electronic Access; and
(c) if  necessary,  be  able  to  stop  orders  or  trades  made  by  a  Client  using  Direct Electronic Access provided by the Member without affecting the other orders or trades made or executed by that Member.