The NSW Police and the NRL have moved to beef up ANZ Stadium security for Sunday's round six clash between Canterbury and St George Illawarra following the Good Friday crowd dramas.
Head of football Todd Greenberg insists the NRL and police are closing in on those who showered match officials with bottles after the Bulldogs' controversial loss to South Sydney.
Authorities continue to sift through video footage of the ugly post-match scenes with unruly fans facing a life ban from venues.
But security has been strengthened ahead of the Dragons v Bulldogs match to prevent a repeat of crowd trouble.
"We have spoken to both clubs and the stadium and people can be very comfortable in the fact they can go to that game and they can enjoy themselves," Greenberg said.