Following spring break, thousands of young partygoers swarmed the streets of Isla Vista on a sunny April weekend, in beach-themed attire, fueled on alcohol and anticipation for the annual unsanctioned Deltopia celebration, reinforcing UCSB’s party school reputation. Despite the alternative events and heightened safety measures in place, the community saw an increase in arrests, requiring a heavy police presence, and multiple calls to medical services.
In a summary from Sheriff's Public Information Officer Raquel Zick, preliminary citations and arrests, compared to past years, were as follows for April 4-6:
| Year | Citations | Arrests |
| 2025 | 485 | 84 |
| 2024 | 256 | 32 |
| 2023 | 151 | 23 |
A DUI checkpoint on Los Carneros Road issued three arrests for driving under the influence. Two other DUI arrests were made by a saturation patrol. All five persons arrested were ages 18-20, under the legal age for alcohol.
