In that case you have been diddled and the electrician has lied to you.
To comply with 17th edition, all circuits must be RCD protected. This is required if wiring is concealed less than 50mm from the surface (yours will be).
The two circuits on the right next to the main switch have no RCD protection.
The MCBs should be removed and changed for RCBOs or he needs to install a board that DOES comply. One of these
http://www.qvsdirect.com/Excel-12-W...ainswitch-RCDs-MCBs-Split-5-5-2-pr-23773.html if you must have cheapo Excel stuff.
Was the electrician registered with any of the Part P schemes? Find out and complain very loudly.
You should have had an installation certificate for the change of the consumer unit. Also a Building regulations Completion Certificate.
These will occur because the electrician will have declared that the work he has done complies with BS7671 and Building Regulations Part P. But he hasn't so that is a lie and fraud.