Melbourne lawyer Jackson Taylor will continue his bid to seek clarity on the Essendon supplements saga when his case against the AFL heads to the Supreme Court on Wednesday.

Sources close to the case confirmed on Saturday that it would go ahead, for Jackson has provided security for costs to pursue his claims of deceptive and misleading conduct, claims the AFL denies.

Taylor had initially lodged a writ against the AFL, including chief executive Gillon McLachlan and former chairman Mike Fitzpatrick, in February last year.

Gillon McLachlan (left) and Mike Fitzpatrick are named in the writ. Credit:Joe Armao

He will be represented by human rights lawyer Julian Burnside, QC, with their case claiming the AFL had deceived or misled the public to protect its interests and reputation through the five-year scandal. One claim is that McLachlan attempted to reach an outcome before players and Essendon officials had been interviewed by the Australian Sports Anti-Doping Authority and the AFL.