WEST Coast's sports science department is cutting edge but would "never cross the line" and administer performance enhancing drugs, according to veteran Andrew Embley.

The Eagles have been briefed by coach John Worsfold after Essendon became the subject of an Australian Sports Anti-Doping Authority (ASADA) investigation on Tuesday.

Speaking at the club's community camp in Northam, Embley said he was concerned about the developments at Essendon, but insisted performance enhancing drugs had never been an issue at West Coast.

"I know our football club is certainly cutting edge when it comes to sports science, [but] we'll never cross the line," Embley said on Thursday.

"Hopefully other clubs are in the same boat.

"We're all about trying to make ourselves not just good footballers but good people. We understand our responsibilities.

"From an AFL perspective you just really hope that this investigation proves to be all legit and all above board, because I would hate for this great game to be tarnished in any way."

Embley described West Coast as a "very ethical club" and said the players believed the football department would never jeopardise their careers by employing banned substances.   

He said the players were never asked to sign waivers and never injected supplements.  

"Everything that we do take is ticked off by our club medicos," he said.

"We are given supplements but certainly to no great extent.

"Everything that is given to us is basically multivitamins, some protein, stuff like that … just swallowed.

"Everything that we do is about improving and getting better, but in the right way."

Nathan Schmook is a reporter for AFL Media. Follow him on Twitter: @AFL_Nathan