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 TM product  The KwaZuluNatal Sharks Board web site suggests that the abovementioned product is an ongoing development of the original SharkPOD   The SARDI report was published on  June   I have also subdivided 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 Kalmijns 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 interlinked Wikipedia articles ie Shark repellent Magnetic shark repellent and Sharkdefense  The existence of both these and the Protective Oceanic Device suggests that there are  separate schools of thought on the matter of shark repellence  the KwaZuluNatal 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 ie 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   cowdy