Demetriou emerged from a highly publicised all-day summit on illicit substance use in the AFL with unanimous support for the existing three-strikes policy.
The league chief declared significant increases in mechanisms for players to fight use of illegal substances through the AFL competition.
The forum is set to become an annual event on the busy AFL calendar for all bosses from clubs, the league and medical fraternity.
Collingwood boss Gary Pert, Essendon's Ian Robson and Gold Coast's Travis Auld will be on the annual working party.
Demetriou revealed that league authorities will tighten a controversial loophole for players to self-report illegal drug use and avoid a positive test and strike against their record.
"Everybody acknowledged that the self-notification can be closed pretty quickly," Demetriou said.
"There's a general concensus that that's an area we can tighten up.
"It has potential to be exploited.
"We also agreed that there needs to be far greater communication can reinforce thi very important message about illicit drugs.
"We should revisit our educational components of our program."
Demetriou has already flagged a projected increase in positive drugs tests from players when results for the 2012 season are released.
The forum was attended by all AFL club chief executives and heard from Victorian and Federal police and top medical experts in relative fields of illicit drug use in the modern society.
All findings from the league chiefs is now expected to be considered by AFL players through their association, headed by chief executive Matt Finnis.
Finnis maintained that confidentiality surrounding drug test findings and suspected use remains an imperative issue for players.
The player's boss confirmed that the AFLPA remains committed to the existing three-strike policy and confidential treatment to offenders.
"The players remain committed to the policy because they feel an ownership around the policy," Finnis said.
"We don't suspect for one moment players are immune from some of the pressures in society.
"We'll continue to be transparent with the public and to continue to support and recognise the players have taken a responsibility for the health and well-being and the safety of each other.
"Clearly the issue around confidentiality remains very important to players."