The defendant failed to:

1. correctly test prescribed electrical work, namely the installation of a socket-outlet, in accordance with regulation 63 of the Electricity (Safety) Regulations 2010 and AS/NZS 3000:2007, knowing that the failure to correctly test the prescribed electrical work was reasonably likely to cause serious harm or significant property damage, and failed to prevent, so far as reasonably practicable, serious harm or significant property damage. 
2. conduct the following tests correctly, using the appropriate test equipment:
   1. Visual inspection of the work, carried out by verifying the correct circuit connections throughout the circuit, including the switchboard and wall switch used to operate the socket-outlet;
   2. Continuity of the earthing system, by measuring between the earth terminal of the socket-outlet and the switchboard earth bar;
   3. Insulation resistance test;
   4. Polarity test at the installed socket-outlet; and
   5. Earth fault loop impedance test.