Waterloo Regional Police say they laid more than 450 charges over Homecoming Weekend, including 300 under the Liquor License Act.
A dozen people were also arrested.
Twenty people were taken to hospital, with six in either serious or critical condition.
Police estimate attendance peaked at 14,000 making it the largest homecoming ever at Wilfrid Laurier University.
Source: John Wehrstein
Photo: Ryan Rocca/Global News