  ==The Matter of Efficacy== Hi everyone, I have updated the article to cite the findings of a SARDI (a South Australian government agency) study into the effectiveness of the Shark Shield Freedom 7TM product.  The KwaZulu-Natal Sharks Board web site suggests that the above-mentioned product is an ongoing development of the original SharkPOD.   The SARDI report was published on 6 June 2012.  I have also sub-divided the article with some sub headings in order to introduce some structure and to hopefully expand the article.  I have removed the reference to Peter Clarkson as his death is the subject of a coronial inquiry in South Australia. Also, the coronial report will probably clarify if a Shark Shield (TM) was used by Peter Clarkson. There are a number of patents that cites the work of Dr Adrianus Kalmijn in respect to electric shark deterrent devices.  As of today, I have not found a paper which discusses Dr Kalmijn’s finding that sharks can be repelled by varying the electrical currents at the site of a potential food source.  I will keep looking.  I have noticed that there is a series of inter-linked Wikipedia articles, i.e. ‘Shark repellent’, ‘Magnetic shark repellent’, and ‘Sharkdefense’.  The existence of both these and the ‘Protective Oceanic Device‘ suggests that there are 2 separate schools of thought on the matter of shark repellence - the KwaZulu-Natal Sharks Board in the Indian Ocean and Sharkdefense in North America. It may be appropriate to bring the ‘Shark repellent’ article under the umbrella of WikiProject Sharks and linked together all of the articles concerning shark repellence.  I have added a link on the ‘Shark repellent’ article page to this article.  In the long term, it may be appropriate to rename and reformat this article to reflect the application of a finding of science (i.e. elasmobranch fish use electric currents to locate food) rather than the history of a product based on the scientific finding in the same manner as the article entitled ‘Magnetic shark repellent’.   cowdy001