Montana Names the Signs of Intoxication the Jury Is to Weigh

Last reviewed September 2026

Montana’s section does something almost no other state’s does: it lists the visible and audible indicators of intoxication a trier of fact is to consider. It also closes off every route to liability except the three it supplies.

Mont. Code Ann. § 27-1-710

Section 27-1-710 sits in Title 27, Montana’s title on civil liability and remedies, rather than in the alcohol title. The section states its own purpose: to set statutory criteria governing the civil liability of a person or entity that furnishes an alcoholic beverage.

Montana closes off every other route: except as the section provides, a person or entity that furnishes alcoholic beverages “may not be found civilly liable under any other statute, theory of recovery, or common law claim” for injury arising from an event involving the person served.

Standard for liability

Liability arises only where the consumer was underage and the furnisher knew it or made no reasonable attempt to determine age; or the consumer “was visibly intoxicated when furnished the alcoholic beverage”; or the furnisher forced or coerced the consumption or said the drink contained no alcohol.

Three triggers, and no others. The second — visible intoxication at the point of furnishing — is the one most litigated, and Montana then tells the trier of fact what to look at.

Montana is unusual in naming the observations a jury is to weigh: “the visible and audible intoxication indicators actually observed by the person furnishing the alcoholic beverage to the consumer, including but not limited to bloodshot eyes, loud and boisterous behavior, fighting behavior, stumbling, and slurred speech.”

That list is worth quoting to a jury, because it moves the argument from an abstract standard to a set of observable things and asks whether the server actually observed them. The statute also directs the trier of fact to weigh the consumer’s own actions, the negligence of the person harmed, and independent intervening causes.

Social hosts

The section reaches “a person or entity that furnishes” alcoholic beverages, wording that is not confined to the licensed trade, and the three liability triggers apply on their terms to whoever furnished.

Because the section is drafted as the exclusive route for any furnisher, a social-host fact pattern in Montana is analyzed within it rather than outside it. Counsel should confirm the current text before relying on any characterisation of its reach.

Minors

The first trigger addresses underage consumers, and it has two limbs: that the furnishing person knew the consumer was underage, or “did not make a reasonable attempt to determine the consumer’s age.”

The second limb is the operationally important one. It makes the absence of an identification procedure sufficient, without proof of knowledge. A Montana venue with no door process and no bar-level check has met the condition on the face of the statute.

Training, responsible-vendor, and safe-harbor provisions

Section 27-1-710 contains no training requirement and no safe-harbor defense, and it goes further than most in one respect.

Licensing status cannot carry the claim: liability may not be found “wholly or partially on the basis of a licensing status under Title 16 or a provision or violation of a provision of Title 16.”

That provision matters to how training evidence is used. A licensing violation cannot carry the claim, so training records do not function as a route to negligence per se. They function as evidence on the statutory triggers — in particular on whether the server was equipped to observe the indicators the statute names.

Operational evidence commonly examined in Montana cases

• Video and witness accounts addressed specifically to the statutory indicators: bloodshot eyes, loud or boisterous behavior, fighting behavior, stumbling, slurred speech.
• What the server actually observed, established from position and sightline rather than from recollection alone.
• Gaming records where the patron was seated at a machine, which establish duration when the bar record does not.
• Point-of-sale keys used for machine-side or comped service, where a generic key hides the count.
• Camera coverage of the machine bank, which in Montana venues is frequently better than coverage of the bar.
• Any identification procedure, or its absence — the underage trigger turns on a reasonable attempt to determine age.
• Material on independent intervening causes, which the statute directs the trier of fact to weigh.

The expert’s role

Montana’s named indicators are an invitation to operational testimony: each is something a trained server is taught to see, and each is something a venue’s layout and staffing either permits or prevents being seen. Preston Rideout holds two Montana alcohol-service certifications and has worked gaming-floor beverage service, which is the setting where a Montana patron seated at a machine is served repeatedly from behind and observed least.

Preston Rideout completed Techniques of Alcohol Management (TAM) for Montana; what that lets him evaluate in a Montana matter, and the records it makes discoverable, is set out at Montana certified expert witness.

Primary sources

• Mont. Code Ann. § 27-1-710(2), leg.mt.gov
• Mont. Code Ann. § 27-1-710(3), leg.mt.gov
• Mont. Code Ann. § 27-1-710(4), leg.mt.gov
• Mont. Code Ann. § 27-1-710(5)(d), leg.mt.gov

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