Reconnecting hallway light switch.

@McGraw It defiantly needs looking at. There seems to be some anomalies present. So get someone in that is in the know, it is in your best interest. It is difficult to say via pictures what cables are doing, a little testing is required using proper test equipment and by a person that understands how to test.
 
Could the odd blue thing be a "slicing" of insulation, sticking out of the terminal?
 

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