A first DUI in Delaware: what it can result in
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A fine with a real floor, and jail the judge may suspend entirely. Delaware writes the first DUI as a fine of not less than $500 nor more than $1,500, or imprisonment of not more than twelve months, or both — and then adds a sentence that decides how the tier actually works: any period of imprisonment imposed under this paragraph may be suspended. There is no mandatory day. The floor that does bite is the fine. The contrast with the next step is sharp: on a second offence within ten years the statute sets sixty days to eighteen months and says the minimum may not be suspended, with only two ways around it — graduating from the Superior Court’s Veterans’ Treatment Court, or completing the Court of Common Pleas DUI Treatment Program with a minimum of thirty days of community service. Delaware also counts what happened within four hours of driving rather than only at the wheel: a reading of .08 or more within four hours, traced to alcohol consumed before or while driving, is the offence.
Written any number of ways — a 1st offense DUI, DUI 1st, DUI first offense DE, or a first DUI in DE — and the paperwork will use none of them. Delaware charges it under a section number, and that is what decides the range below.
Grade. Misdemeanor
Confinement. Up to 12 months — and any of it may be suspended
Fine. $500 to $1,500
21 Delaware Code § 4177 · 21 Del. C. § 4177(a)(5), (d)(1), (d)(2) · checked 2026-09-06
The device is a separate track
Delaware runs two routes rather than one. At arraignment a driver with no prior DUI may elect the First Offender Program, which waives the right to a speedy trial and to an administrative hearing; those who took a chemical test may add the interlock election to it. There is also a separate voluntary program. Either way the interlock license waits until you meet the minimum qualifications.
In Delaware the interlock term runs Set by program and is administered by Delaware Division of Motor Vehicles, IID Unit — which is why a plea that settles the criminal case does not settle the device. What counts as a violation on it, and what an agency adds to the term, is its own arithmetic: violations and lockouts. Getting it off at the end is a procedure of its own too — removal and waivers.
Delaware DUI questions
Is jail time mandatory for a 1st DUI in Delaware?
Delaware writes the first DUI as a fine of not less than $500 nor more than $1,500, or imprisonment of not more than twelve months, or both — and then adds a sentence that decides how the tier actually works: any period of imprisonment imposed under this paragraph may be suspended. There is no mandatory day. The floor that does bite is the fine. The contrast with the next step is sharp: on a second offence within ten years the statute sets sixty days to eighteen months and says the minimum may not be suspended, with only two ways around it — graduating from the Superior Court’s Veterans’ Treatment Court, or completing the Court of Common Pleas DUI Treatment Program with a minimum of thirty days of community service. Delaware also counts what happened within four hours of driving rather than only at the wheel: a reading of .08 or more within four hours, traced to alcohol consumed before or while driving, is the offence.
How likely is jail time for a first DUI in DE?
Start from what the statute forces and what it leaves to the judge. The floor here is up to 12 months — and any of it may be suspended. Everything above that floor is argued, and the same conviction can end up served in custody, on work release or as a condition of probation depending on the county and the judge. What no one can promise you is a sentence below the statutory minimum — that is not a question of persuasion.
What is the punishment range for a 1st DUI in Delaware?
Misdemeanor: up to 12 months — and any of it may be suspended, and a fine of $500 to $1,500. The range is set by 21 Del. C. § 4177(a)(5), (d)(1), (d)(2), and the figures on this page come from the statute rather than from a summary of it.
Does an interlock come with it in Delaware?
Delaware runs two routes rather than one. At arraignment a driver with no prior DUI may elect the First Offender Program, which waives the right to a speedy trial and to an administrative hearing; those who took a chemical test may add the interlock election to it. There is also a separate voluntary program. Either way the interlock license waits until you meet the minimum qualifications. The device requirement and the criminal penalty are separate tracks: one is handled by the court, the other by Delaware Division of Motor Vehicles, IID Unit.
Other steps in Delaware: when it becomes a felony penalties.
All Delaware DUI rules →Penalties across the states →Delaware DUI lawyers →Getting the license back →
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