Regulation 31 of Registration of Engineers Regulations 1990

A  registered Engineer or an Engineering consultancy practice shall not directly or indirectly -

1. supplant  or  attempt  to  supplant  another  registered  Engineer  or  an  Engineering consultancy practice;
2. intervene or attempt to intervene in or in connection with engineering work of any kind which to his knowledge has already been entrusted to another registered Engineer or an Engineering consultancy practice; or
3. take over any work of that other registered Engineer or an Engineering consultancy practice acting for the same client unless he has -
   1. obtained the consent of that other registered Engineer or an Engineering consultancy practice; or
   2. been formally notified by the client that the services of that other registered Engineer or an Engineering consultancy practice have been terminated in accordance with the provisions of any contract for professional engineering services  entered  into  between  that  other   registered   Engineer   or   an Engineering consultancy practice and the client, provided always that in the case of  dispute over non-payment of fees or quantum of any outstanding fees  under the  contract,  the  client  may  request  the  Board  to  be  the stakeholder.

Note:
BEM function in Stakeholder application is merely keeping the stake until an award is issued by an arbitrator or Mediator or Court Order.