Where the material originates outside the UK, the Internet Watch Foundation will attempt to trace the source and pass details to the National Criminal Intelligence Service.
This is able to happen because the space between the electrodes is filled with a material called an electrolyte which allows ions (electrically charged atoms, or groups of atoms) to pass from one electrode to the other and thus combine with their chemical complements.
To get the remaining scientifically (or otherwise) relevant emails out, I ask you to pass this on to any motivated and responsible individuals who could volunteer some time to sift through the material for eventual release.