The story behind Lagunitas Brewing Company’s Undercover Investigation Shut-Down Ale is a tale of rebellion, craft beer culture, and a cheeky response to authority. Brewed by Lagunitas in Petaluma, California, this American Strong Ale (9.6% ABV, 66.6 IBUs) commemorates a 2005 incident dubbed the “St. Patrick’s Day Massacre” and the brewery’s subsequent 20-day suspension. Here’s the “highstory”:
The Incident
Lagunitas, founded by Tony Magee in 1993, was known for its laid-back, counterculture vibe, hosting weekly parties every Thursday at 4:20 PM in their taproom loft. These gatherings featured beer, live music, and food, attracting a mix of locals, friends, and family. The brewery’s open embrace of cannabis culture—evident in the conspicuous 4:20 start time—drew the attention of California’s Alcohol Beverage Control (ABC).
In early 2005, the ABC launched an eight-week undercover investigation, suspecting illegal activities at these events. Undercover agents posed as partygoers, attempting to catch the brewery in acts like serving minors, overserving alcohol, or facilitating drug sales. Despite their efforts, the agents found no evidence of underage drinking or alcohol-related violations. However, they did observe cannabis use outside the brewery, which was common but not condoned by Lagunitas. Frustrated by their lack of success in nabbing serious offenses, the ABC culminated their sting on St. Patrick’s Day 2005, raiding the event, arresting a few individuals for possession, and charging Lagunitas with operating a “Disorderly House” and “Moral Turpitude” (a term the brewery had to look up, defined as “devoid of social morals”).
The Fallout
The ABC initially slapped Lagunitas with a one-year suspension of their operating license, a potentially devastating blow for a growing craft brewery. After negotiations, the penalty was reduced to 20 days, and Lagunitas strategically chose to serve the suspension in mid-January 2006, using the downtime to install a new bottling line and generate significant media buzz. The brewery leaned into the ordeal, turning a setback into a marketing triumph.
The Beer
In defiance and celebration, Lagunitas created Undercover Investigation Shut-Down Ale, first released in 2005. The beer’s label, penned by Magee, a former reggae musician, drips with sarcasm: “We Brewed This Especially Bitter Ale In Remembrance of the 2005 St. Patrick’s Day Massacre And in Celebration of Our 20-Day Suspension. … Whatever. We’re Still Here.” The name itself was a jab, as the ABC had to approve the label, forcing them to stamp their own embarrassment.
The beer is a malty, hop-forward American Strong Ale that defies strict style guidelines—Lagunitas jokingly calls it an “Imperial Mild” or “Uber ESB.” It pours a clear amber with a light beige head, offering aromas of pine, citrus, and caramel malts. The flavor balances sweet malt, fruity hops, and a bitter, grapefruit-zest finish, with a creamy medium body and a sneaky drinkability despite its high ABV. Reviewers praise its balance, though some note the alcohol can be prominent.
The Legacy
The ale became a fan favorite, earning a 91/100 on BeerAdvocate with over 4,500 reviews and a 3.9/5 on Untappd with 131,000+ check-ins. It’s celebrated not just for its taste but for its story, embodying Lagunitas’s irreverent spirit. The brewery even produced a YouTube video in 2015, “The HIGHSTORY Behind Undercover Investigation Special Ale,” where employees recount the tale with humor, mentioning “undercover agents hiding in jean jackets” and a “giant joint made with a sushi roller.”
The beer also nods to a broader ethos. Tony Magee, reflecting on the incident, quoted Benjamin Franklin: “You can tell the strength of a society by the paucity of pages in its book of laws,” critiquing overreach by authorities. When an ABC agent later returned to reinstate the license, Magee teased him, learning the agent had aspired to be an astronaut—hence the beer’s dedication to “all the world’s would-be astronauts.”
Conclusion
Undercover Investigation Shut-Down Ale is more than a beer; it’s a middle finger to bureaucracy and a testament to resilience. Lagunitas turned a bust into a badge of honor, crafting a bold, bitter ale that tells a story in every sip. As they put it: “Do the crime. Do the time. Get the bragging rights.”
About Lagunitas Brewing
Founded in 1993 by Tony Magee in Petaluma, California, Lagunitas Brewing Company has grown from a small kitchen stove operation to a globally recognized craft brewery, now a subsidiary of Heineken International since 2017. Renowned for its hop-forward beers, particularly the iconic Lagunitas IPA—the top-selling IPA in the world—the brewery has built a loyal following through its irreverent spirit, innovative brews, and commitment to community. With a diverse portfolio that includes non-alcoholic offerings like Hoppy Refresher and IPNA, as well as experimental seasonal releases, Lagunitas continues to push boundaries while staying true to its roots, welcoming open-minded beer enthusiasts with open taps and a vibrant, inclusive culture.
Lagunitas remains deeply connected to its Petaluma home, where its taproom and beer sanctuary serve as a hub for locals and visitors to experience exclusive brews, live music, and events like Thursday karaoke and bingo nights. The brewery’s commitment to sustainability and community shines through initiatives like its collaboration with Toast Ale, creating The Toast of Petaluma, a lager brewed with surplus bread to reduce food waste, and donations to local nonprofits like Sonoma Family Meal. As Lagunitas consolidates its brewing operations in Petaluma following the 2024 closure of its Chicago facility, it aims to enhance efficiency, focus on innovation, and continue delivering fresh, high-quality beers to fans across 20 countries and beyond.
Top 10 Beer Festivals in America plus a few more: Click Here!