Installation of a) 2 x security cameras to north elevation; b) 6 x security cameras, anti-climb spikes, anti-climb barriers and security spikes above 4th floor level on east elevation; c) 2 x security cameras, anti-climb spikes, anti-climb barriers and security spikes at 4th floor level on south elevation; d) 3 x security cameras, anti-climb barriers and security spikes at 4th floor level on west elevation;