New body-worn video cameras will assist police as they investigate last night's incident where Canterbury fans clashed with police during the Bulldogs' elimination loss to the Sydney Roosters on Friday night.

Detective Superintendent Gavin Dengate said that police are investigating the incident that occurred shortly before half time, after police were called to assist security at Allianz Stadium in regards to a number of spectators who were swearing and unruly.

Wrapped up: Roosters prop Kane Evans is tackled during Friday night's controversial game against the Bulldogs. Credit:Getty Images

Police are reviewing CCTV footage and body-worn cameras to determine what occurred. It's the first time police have used body-worn cameras and Dengate said the cameras "survived [their first test] very well".