The numbers are in following the Ever After Music Festival at Bingemans in Kitchener in early June.
Waterloo Regional police say despite attendance increasing by over 10,000 people, the number of incidents and charges decreased.
Forty-nine thousand people took in the electronic music festival this year, an increase of 38,000 from 2017.
A total of 136 incidents took place over the three-day music festival, down from 342 last year.
Police say one of the largest decreases they saw was related to drugs, down from 129 in 2017 to just 15 this year.
Officials attribute the drop to a reduction in seizures made by security guards at the front gate along with the level and thoroughness of searches that they conducted.
Noise complaints also saw a significant drop from 100 in 2017 to just seven this year.
However, the number of medical incidents doubled and were related to substance use and misuse.
Waterloo Regional Police say in the report, for the first time this year, a paid duty officer was added to Grand River Hospital's emergency room to help security, which was required with incoming patients from the event.
Police say there were also 105 paid duty shifts scheduled through the weekend.