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“text”: “Evidence-based prosecution refers to building a DV case that can proceed even if the victim recants or refuses to cooperate. It relies on physical evidence, 911 recordings, medical records, officer observations, prior incident history, and other documentation that doesn’t depend on victim testimony. It requires specific training to execute well.”
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“text”: “Recantation is common in DV cases and is driven by a range of factors: trauma bonding with the abuser, financial dependency, fear of retaliation, concern for children, and distrust of the legal system. Officers trained in the dynamics of coercive control and trauma response are better equipped to build cases that don’t collapse when a victim changes her statement.”
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“text”: “Effective DV documentation goes beyond a basic incident report. It includes detailed description of injuries (not just ‘red marks’), the victim’s emotional state at the time of contact, specific statements made by both victim and suspect, evidence of prior incidents, and documentation of any strangulation indicators. The quality of this documentation controls what a prosecutor can do with the case.”
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Ask most agencies about domestic violence training and they’ll tell you they have it. Officers go through something at the academy. There may be an annual refresher. The boxes are checked.

Then ask a prosecutor how many DV cases they have to drop because the investigation didn’t support the charge. The gap becomes obvious.

One entry-level DV course does not produce officers who can work complex intimate partner violence cases. It produces officers who know why DV matters and can generate a basic report. That’s a starting point, not a destination.

## What’s Getting Lost Between Training and Outcomes

Domestic violence investigations fail at trial for predictable reasons. Most of them trace back to what happened — or didn’t happen — before the case ever reached a prosecutor.

**Evidence-independent cases.** DV victims recant. It happens at high rates, for reasons that are well-documented in the research on trauma bonding, financial dependency, and fear of retaliation. Officers who are trained to rely primarily on victim statements are building cases with a built-in weak point. Evidence-based prosecution reduces that dependency — and it has to be specifically trained.

**Lethality assessment.** Not every DV call represents the same level of danger. Officers who aren’t trained to use lethality assessment tools miss escalating situations. Prior strangulation is one of the strongest predictors of future homicide — which is why strangulation investigation training belongs in every agency’s DV curriculum.

**Documentation specificity.** “Victim has red marks on neck” is not the same as a documented strangulation injury. The specificity of documentation controls what a prosecutor can work with and what a defense attorney can challenge.

**Dynamics of coercive control.** Intimate partner violence often involves control tactics that don’t leave marks — financial abuse, isolation, threats against children, digital surveillance. Officers who only see the physical assault are working with an incomplete picture.

**Repeat victim contact.** DV investigations are often not single incidents. Prior calls, prior reports, and the victim’s history with an abuser are all relevant and often available through dispatch records.

## Who This Applies To

**Patrol officers** are usually first on scene. What they document — and what they miss — shapes the case from the start.

**Detectives** who receive DV referrals need more than patrol-level training. Building a prosecution-ready case in non-cooperative victim situations requires specialized skill.

**Supervisors** who review DV reports need enough training to identify weak documentation before a case goes to the DA.

**Training coordinators** who see this problem play out in prosecution outcomes are often the ones who can do something about it. For a framework on building a complete agency training program, see our guide on building a law enforcement training program that gets used.

## Building a Better DV Training Curriculum

Effective domestic violence training at the agency level includes:

– The legal framework for your jurisdiction, including mandatory arrest requirements
– Trauma-informed approach to victim interaction and statement-taking
– Evidence collection priorities and documentation standards
– Strangulation recognition and documentation (this deserves its own module — see RTI’s strangulation course)
– Lethality assessment protocols
– Building evidence-independent cases
– Dynamics of coercive control
– Child exposure to DV — documentation requirements and notification obligations
– Courtroom preparation, including handling recanting victims

For agencies building out homicide investigation capability — domestic violence is among the most common homicide precursors — see our post on what to look for in online homicide investigation training.

## Frequently Asked Questions

**What is evidence-based prosecution in domestic violence cases?**
Evidence-based prosecution refers to building a DV case that can proceed even if the victim recants or refuses to cooperate. It relies on physical evidence, 911 recordings, medical records, officer observations, and prior incident history — documentation that doesn’t depend on victim testimony.

**Why do domestic violence victims recant?**
Recantation is driven by trauma bonding, financial dependency, fear of retaliation, concern for children, and distrust of the legal system. Officers trained in the dynamics of coercive control and trauma response are better equipped to build cases that don’t collapse when a victim changes her statement.

**Is lethality assessment part of domestic violence investigation training?**
It should be. Validated lethality assessment tools help officers identify high-risk situations — including prior strangulation, one of the strongest predictors of future homicide. RTI’s DV and strangulation courses both address lethality assessment.

**What documentation is required for domestic violence cases?**
Effective DV documentation goes beyond a basic incident report. It includes detailed injury description, the victim’s emotional state, specific statements made by both parties, evidence of prior incidents, and any strangulation indicators. The quality of this documentation controls what a prosecutor can do with the case.

## RTI’s Domestic Violence Course

RTI’s domestic violence investigation training is built for officers and detectives who need to do more than check the DV box. It’s POST-certified and built by instructors who have worked these cases.

View the domestic violence course here.