The Attorney Checklist for Vetting a Remote Alcohol Monitoring Service

Remote alcohol monitoring data can carry real weight in contested cases. Its value depends on how each result was recorded, how the tester's identity was confirmed, how complete the log is, and who stands behind it in court. Those questions tend to surface at the worst moment, in a heated motion or on cross, when opposing counsel is looking for any gap in the record.

That's why the vetting happens before you recommend a service. A reliable service is one whose records, and whose court-acceptance claims, hold up to scrutiny. Knowing what to require up front, and what to ask for when a printout isn't enough, puts the record on firmer ground from the start.

The ten checks that follow run in the order a challenge tends to arrive. They start with the device, move to the record, and end with the person who can vouch for it.

The ten checks at a glance

Ten checks separate a service worth recommending from one that leaves a record open to challenge. Score each one pass, partial, or unknown. Send every unknown to the vendor as a written question before you recommend anything. Together they cover the sensor, the person testing, the record, the report, and the proof behind any court claim.

Save the vendor's written answers with the case file, dated. Plans, features, and pricing change, and a dated answer shows what you relied on when you made the recommendation.

BACtrack View answers these 10 questions on its public pages and Help Center, from the sensor and how each test is video-verified to ease of use and terms.

Sensor accuracy and calibration

Accuracy comes from two things, the sensor type and how the breathalyzer is kept in calibration. Ask for both in writing. 

For a portable breathalyzer, look for a fuel-cell sensor. It's the standard sensor type in professional and field screening devices, and forensic studies have found fuel-cell readings closely track evidential breathalyzers and blood tests [1]. 

A 2018 peer-reviewed PeerJ study tested portable fuel-cell breathalysers in four field studies, one against an evidential breathalyser. It found 93 to 97 percent agreement between readings [1]. The authors name breathing patterns and device calibration as sources of measurement uncertainty. They also saw more measurement error at higher readings and call mouth alcohol a large threat to validity.

That study did not test BACtrack devices, so it works as context for your questions and not as proof about any one product. BACtrack View uses the same fuel-cell sensor type used by law enforcement.

Calibration matters because fuel-cell sensors drift with use. A sensor is calibrated against controlled alcohol mixtures, and over time, generally after several hundred tests, residue such as saliva, smoke, and food particles builds up inside and the sensor needs recalibration [2]. Over a monitoring period of several months, that can come due. Ask how the vendor knows a device is due, whether it recalibrates or swaps the device, and whether that history is documented for the record. 

Identity and tamper resistance

Find out how your vendor makes sure the right person took each test, and what blocks a second person or a second device from taking part. Video with audio gives a reviewer something to watch after the fact, while a still photo captures one frame.

No tamper-control system is likely to stop every workaround, and a vendor that says otherwise is overselling. The better question is which workarounds the design blocks and which it leaves to the reviewer.

BACtrack has three layers of control in place. CLEARview records the test in video with audio, FACEdetect stops a test when it detects no face or more than one face, and SOLOguard halts a test when it finds another Bluetooth breathalyzer nearby. Together, these provide reviewable evidence of who was testing and under what conditions.

Confirm how these controls behave in your client's setup. Check which device models and app versions are supported, and which phone permissions (camera, microphone, Bluetooth, location) have to stay on. Then ask what happens when a face or device check fails or the connection drops, and whether failed checks are saved in the log the report draws from.

Time, location, and completeness of the record

Every test needs a timestamp, a place, and a result captured by the system and not typed in by a person. Ask how the vendor records each one, and whether a missed test leaves a trace. A record with silent gaps invites the argument that the completed tests were the only ones the client chose to show.

Check how a vendor reports a missed test. A report listing only completed tests tells a partial story, and the other side may say so.

BACtrack View saves each result with the date, time, location if enabled, and a video of the test. Location is a setting, so confirm it is switched on before the first test, not after the first hearing.

Tests can run at fixed times or inside random windows, and the schedule sets how many randomized tests fall in each window. When a test isn't done in its window, BACtrack View logs it as missed, notifies the monitor, and records it in the testing history.

Reports, access, and who can vouch for the data

Confirm who can open the record, in what role, and who can speak to how it was generated.

BACtrack View invites connections by email, with one on Basic, three on Plus, and unlimited on Pro. A Monitor sets the schedule and exports reports, while an Accountability Partner sees results only. Attorneys and other authorized parties can also be granted access, depending on the arrangement. 

Access is not authentication. In federal court, Rule 901 asks for enough evidence to support a finding that a record is what the proponent claims [3]. Rule 902(13) and (14) let a qualified person's certification authenticate some electronic records, with written notice to the other side before the hearing [4]. State family courts apply their own rules, so confirm the local version.

BACtrack authenticates results, responds to subpoenas, supports the attorney if results are disputed, and provides notarized report copies on request. A notarized copy confirms who signed it, not how the electronic record was generated, so it does not by itself satisfy Rule 902(13). 

When vetting, ask what form any certification takes, whether a records custodian can give a declaration or testify, whether test video is accessed separately from the report, and how long data and video are kept.

Evidence behind court-acceptance claims

"Court approved" is a claim to test, not a credential. A judge decides admissibility case by case under local rules. Check with the vendor which courts, which proceedings, and which standard, and who wrote any validation it cites. A specific, sourced answer beats a broad one.

Federal courts apply the Daubert standard. The judge weighs whether a method can be tested and has been peer reviewed. The judge also weighs its error rate, its standards, and its acceptance in the field [5]. Some states still apply Frye, which asks whether the method is generally accepted [6].

In federal court, Rule 702 requires the proponent of expert testimony to show it is more likely than not that the testimony meets the rule's reliability tests. A 2023 amendment spelled that standard out [7]. Confirm which test your court applies before you weigh any vendor's validation.

For validation, BACtrack points to an October 2025 Justice Speakers Institute report by Judge Brian MacKenzie (Ret.) and David Wallace, Esq. The authors say the platform's video recording, audit trail, and secure data storage "support chain-of-custody requirements necessary for admissibility in evidentiary proceedings" [8].

Ease of use, cost, and exit terms

A service your client can't keep up with produces a thin compliance record, so check setup, trial, price, and exit terms. Month-to-month billing with a real trial lets the arrangement change when the case does. Ask who holds the account and who pays, since both are terms to settle up front.

BACtrack View publishes its plans and trial terms in full, from $79.99 a month on Basic to $129.99 on Pro, with Plus at $99.99. New customers get a 14-day free trial. There are no activation fees and no long-term contract, and cancellation goes through a form on its site.

Basic caps testing at 30 tests a month, while Plus and Pro don't. The breathalyzer ships free with the subscription, and a customer who stays past three months keeps the device. Confirm the plan's test cap against the schedule the case calls for.

With BACtrack, only one person is required to pay for the service. That is typically the tester, though the monitor can handle billing instead.

Set up a monitoring record that holds up to questions

A monitoring arrangement you can stand behind asks for a particular kind of setup: a record the system captures rather than one the client reports, video a reviewer can watch, and missed tests that show up instead of disappearing. Four decisions shape it, and each is worth settling before the first test: the roles on the account, a schedule that fits the parenting plan, who gets access to results, and a plan tier that produces the reports the case needs.

Cases change, and a testing schedule that fits temporary orders often doesn't fit the final one. On a monthly plan with no long-term contract, the schedule can tighten or loosen as the case moves, whether that means daily tests around custody exchanges at the start, randomized windows later, or fewer tests once a pattern of compliance is on record.

BACtrack View gives you a video-verified, timestamped record of every test your client takes, on a schedule the Monitor sets, visible to the Connections the account allows. It is built for family law cases where the record has to hold up to questions.

Start a free trial at monitoring.bactrack.com.

Frequently Asked Questions

References

1. Sorbello et al. (2018). PeerJ 6:e4418.
2. Canadian Intellectual Property Office. Patent application CA 2999251, "Replaceable Alcohol Sensor Module." 
3. Cornell Legal Information Institute. "Federal Rule of Evidence 901. Authenticating or Identifying Evidence."
4. Cornell Legal Information Institute. "Federal Rule of Evidence 902. Evidence That Is Self-Authenticating."
5. Cornell Legal Information Institute. "Daubert Standard."
6. Cornell Legal Information Institute. "Frye Standard."
7. Cornell Legal Information Institute. "Federal Rule of Evidence 702. Testimony by Expert Witnesses."
8. PRWeb (October 7, 2025). "Independent Judicial Report Confirms BACtrack View Meets Daubert and Frye Standards for Courtroom Use."