Frequently Asked Questions

FAQs

The answer to this question depends on how you measure officer daily practices.

With regard to paperwork, the research is mixed. In Plymouth, England, body-worn cameras (BWC) led to quicker resolution of cases, which produced a 22.4% reduction in officer time devoted to paperwork and file preparation; and to a 9.2% increase in officer time spent on patrol (an extra 50 minutes per nine-hour shift) (Goodall, 2007). But in Victoria, Canada, and in Phoenix, AZ, officers spent significantly more time on paperwork following the deployment of BWCs (Laur et al., 2010; Katz et al., 2015).

With respect to evidentiary quality, research conducted in Plymouth and Essex, United Kingdom; Victoria, Canada; and Phoenix, AZ, suggests that the use of BWCs increases the quality of evidence (Goodall, 2007; Laur et al., 2010; Owens et al., 2014; Katz et al., 2015). Related to these results, in Phoenix researchers reported that domestic violence incidents where an officer was wearing a BWC were more likely to result in charging and conviction. Specifically, they found that when compared to non-camera cases, camera cases were more likely to be initiated by the prosecutor’s office (40.9% vs. 34.3%), have charges filed (37.7% vs. 26%), have cases furthered (12.7% vs. 6.2%), result in a guilty plea (4.4% vs. 1.2%), and result in a guilty verdict at trial (4.4% vs. 0.9%) (Katz et al., 2015).

If officer performance is measured by the number of contacts with members of the public, the evidence is limited. In Rialto, CA, there was an increase in the number of contacts between law enforcement and the public after BWCs were deployed in the field (3,178 more contacts after BWC deployments, compared to the prior year) (Ariel, et al. 2014). We do not know why there was this increase but intend to do further research to find out if an increase is consistent with what is happening with other departments and why.

More generally, a number of law enforcement executives interviewed indicated that they had used BWCs to identify and address larger structural issues in their department and to develop solutions to those problems. This includes weaknesses in training, policy, and law enforcement officer field behavior (e.g., using video footage to investigate racial profiling) (PERF, 2014).

For more information, see:

Phoenix, Arizona: http://cvpcs.asu.edu/sites/default/files/content/projects/PPD_SPI_Final_Report%204_28_15.pdf
Rialto, California: https://www.policefoundation.org/publication/self-awareness-to-being-watched-and-socially-desirable-behavior-a-field-experiment-on-the-effect-of-body-worn-cameras-on-police-use-of-force/
Police Executive Research Forum (PERF) for the Office of Community Oriented Policing Services, Implementing a Body-Worn Camera Program: Recommendations and Lessons Learned: http://www.justice.gov/iso/opa/resources/472014912134715246869.pdf

Body-worn cameras (BWC) are only one of the tools available to law enforcement for improving community trust, transparency, and accountability. There are several benefits for law enforcement officers who wear BWCs. BWCs provide an additional layer of safety for the officer. Adoption of a BWC program can represent a law enforcement department's effort to demonstrate transparency and accountability. In several studies, community member complaints against officers decreased following adoption of BWCs (Katz et al., 2015; Ariel, Farrar, & Sutherland, 2014; Mesa Police Department, 2013). The results from these studies are supported by in-person interviews with 40 law enforcement executives conducted by the Police Executive Research Forum (PERF). In one study, use-of-force by law enforcement officers decreased following adoption of BWCs (Ariel, Farrar, & Sutherland, 2014). Continuing research seeks to identify the underlying cause of the benefits. Additionally, video from BWCs may assist with prosecution of criminal cases or assist in the review of community members' complaints against officers. While research in Great Britain supports this potential evidentiary benefit, research in the United States has not sufficiently investigated the evidentiary value of BWCs (Goodall, 2007).

During the February 26-27, 2015 Bureau of Justice Assistance BWC Expert Panel, Inspector Steve Goodier of the Hampshire Constabulary in the United Kingdom shared highlights from their yearlong study of 180 body-worn videos. He cited reductions in crime, police-generated incidents, and assaults against police officers. The Inspector further explained "a large-scale public opinion survey was done before and after program implementation that concluded 85% of the public support for BWC technology. This survey was complemented by an officer survey–an overwhelming positive for support for BWCs."

For additional information, see:

The decision by a law enforcement agency to implement a body-worn camera (BWC) program represents an enormous investment of time and resources. The following are some of the concerns related to BWC programs:

Buying the hardware and managing the data: In January 2015, the acting Chief of the Phoenix (AZ) Police Department announced that it would cost the department $3.5 million to outfit its 3,000 officers with body-worn cameras and manage the BWC program. Overall, the costs vary depending on the type of camera, type of storage, IT support, and use of video. Agencies have been able to save money by joining with other agencies to purchase cameras and storage.
Privacy considerations: Privacy rights of the public are a primary concern. BWCs have the potential to impinge on community members' expectation of privacy. The technology may also present concerns for vulnerable populations such as children and victims of crime. Law enforcement agencies should fully investigate state privacy laws and engage relevant stakeholder groups (e.g., victim advocacy groups) before adopting BWCs. Officer privacy should also be addressed. Some law enforcement unions have opposed BWCs, arguing that adoption of the technology must be negotiated as part of the collective bargaining agreement. Also, at the February 26-27, 2015 Bureau of Justice Assistance BWC Expert Panel, some of the audience expressed concerns about BWCs because the technology gives supervisors the opportunity to go on "fishing expeditions" against officers in their command. Discussions among law enforcement executives and line officers are an important aspect of the policy development for implementing a BWC program.
Prosecution: Prosecutors and defense attorneys will want to review BWC video related to their cases, but they too have an obligation to protect the privacy of community members captured in the video. Therefore, it is important that the impact on prosecutorial and defense bar resources is taken into account when implementing a BWC program.
Policy development: During the BWC Expert Panel, participants shared very specific concerns and examples about BWC policy. For instance, Maggie Goodrich of the Los Angeles Police Department discussed her agency's concerns about ensuring officers always consider safety first and not put themselves in danger because of any additional distraction caused by the cameras. Assistant Chief Michael Kurtenbach of the Phoenix (AZ) Police Department walked through an example of a video used in a prosecution that resulted in an assault conviction of the officer. Triggered by the egregious behavior in the video, the agency reviewed three months of prior video to discover a pattern of inappropriate behavior. Upon the officer’s termination, the police union expressed concerns about evaluation of prior video, because the department had said it would not use video for administrative purposes. Kurtenbach suggested this illustrates the need for thoughtful consideration of policies even though, in this example, "once the videos were seen everyone agreed the officer should be fired."
Training considerations: Law enforcement agencies should plan for additional training on camera use, video review, and video expungement and redaction.
Advocacy considerations: Cynthia Pappas from the Office of Juvenile Justice and Delinquency Prevention reminded BWC Expert Panel participants that "95% of youth and juveniles commit non-violent offenses so there should be great precautions made to protect them, including protections from public screening" of the video. Krista Blakeney-Mitchell from the Office on Violence Against Women went on to describe how victim confidentiality should be addressed during a call for assistance for domestic violence. If an officer is entering the home of a domestic violence victim, the victim is exposed. "We need to consider how that plays out later in recordings. Will the video be used against the victim based on her demeanor near the time of the incident? Will she be re-victimized?" Another concern is the use of BWCs when dealing with sexual assault victims and the need to decide how video will be used in these situations. Lastly, Blakeney-Mitchell explained that it is "hard for victims to come forward when everyone will know their story based on video footage…there is a concern that victim reporting will go down."

For more information, see:

Phoenix, Arizona: http://cvpcs.asu.edu/sites/default/files/content/projects/PPD_SPI_Final_Report%204_28_15.pdf

There is little empirical evidence on the impact of body-worn cameras (BWC) on community member complaint investigations. In Phoenix, AZ, researchers reported that camera-wearing officers who received a complaint were significantly less likely to have the complaint sustained, compared to non-camera-wearing officers and other patrol officers (Katz et al., 2015). Evidence from the United Kingdom also suggests that BWCs may result in quicker investigation of community member complaints against law enforcement (Goodall, 2007). The video evidence may also be used to provide members of the public with additional information that helps them understand the law enforcement officer’s behavior during a particular encounter (e.g., educational value). Legal scholar David Harris stated, "If citizens can see that they were, perhaps, mistaken, or that they did not understand the situation from the officer’s point of view, or that they did not have all the facts, they may come away with a better grasp of the situation, and feeling that they need not continue with the complaint process." (Harris, 2010: 7)

There is also some evidence to suggest that BWCs can assist with the investigation of critical incidents, including officer-involved shootings. Former Chief of Police Miller of the Topeka (KS) Police Department stated that a local district attorney cleared one of his officers of any wrongdoing during a critical incident after reviewing the BWC footage of the deadly shooting (PERF, 2014).

For more information, see:

Police Executive Research Forum (PERF) for the Office of Community Oriented Policing Services, Implementing a Body-Worn Camera Program: Recommendations and Lessons Learned: http://www.justice.gov/iso/opa/resources/472014912134715246869.pdf
Office of Justice Programs Diagnostic Center, Police Officer Body-Worn Cameras: Assessing the Evidence: https://bja.ojp.gov/sites/g/files/xyckuh186/files/media/document/diagnosticcenter_policeofficerbody-worncameras.pdf
United Kingdom Home Office, Guidance for the Police Use of Body-Worn Video Devices: http://library.college.police.uk/docs/homeoffice/guidance-body-worn-devices.pdf
David A. Harris, University of Pittsburgh, Picture This: Body-Worn Video Devices as Tools for Ensuring Fourth Amendment Compliance by Police: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=1596901

Law enforcement agencies should consult with their local prosecutors and legal counsel as they design their data storage policies. Laws governing how long video must be stored may vary across cities, tribal governments, and states. Video that depicts an arrest or critical incident may have to be stored for an extended period of time. Departments have varied policies on how long they keep video that depicts an encounter where no formal action is taken. Some departments will store such video as long as a community member can file a complaint. For example, if members of the public can file a complaint for up to six months after an encounter with a law enforcement officer, it may be necessary to keep all video for six months so the video can be accessed to assist with the complaint investigation. State law may dictate the length of time for storage of more formal law enforcement encounters with members of the public. These are important issues that law enforcement agencies should discuss with their prosecuting authority before procuring storage systems or enacting any policies regarding storage.

Some departments classify body-worn camera video as either "evidentiary" or "non-evidentiary." Evidentiary video includes footage that can be used for investigative purposes, and many departments have created sub-classification systems of types of videos (homicide, use-of-force, arrest, mental health commitment, etc.). The length of time a video is retained is then typically determined by how the video is classified (evidentiary or non-evidentiary) and, if evidentiary, the type of encounter.

Many of those surveyed by the Police Executive Research Forum (PERF) retain non-evidentiary video for 60-90 days. Regardless, retention times should be specifically stated in department policy, as should the process for data deletion. As an indicator of transparency, many departments publicly post their retention policies on their web site.

The PERF report (PERF, 2014) also identifies a number of data storage issues that should be covered by policy and put in place:

The policy should clearly prohibit data tampering, editing, or copying.
There should be technological protections against tampering.
The department should have an auditing system in place that documents who accesses each video, when the access occurs, and why.
The policy should identify who has authority to access video.
Departments should develop a reliable back-up system for video.
Law enforcement should provide guidance on when officers should download video (e.g., at the end of the shift).
The policy should be explicit about the use of third-party vendors.

The answer to this question is dependent on the size, structure, and resources available to the agency. For some agencies, a training officer or training unit might be involved; in others, it might include a commander, legal counsel, information technology specialist, or a combination of personnel. Regardless of the personnel assigned to train law enforcement officers on body-worn cameras (BWC), at least four fundamentals should be included in training:

Officers should be trained on departmental BWC policy (specifically when a BWC should be activated) and any applicable local/tribal ordinances or state laws.
Officers should be trained to conduct a pre-shift inspection of the BWC to ensure that it is in proper operating condition.
Officers should be trained on how and where to wear the BWC.
Officers should be trained on how to properly document recorded events and download the evidence for storage according to departmental policy.

The Police Executive Research Forum (PERF) report concludes that "rigorous, ongoing officer training" regarding policy and protocols is essential for effective use of the technology. It may also be useful for an agency to create a training manual on BWCs, and to make that manual available to officers. As use of BWCs expands in an agency, training on the technology should be incorporated into academy curriculum, so that new recruits are exposed to the cameras during their formative training experience. The training may also be provided to other stakeholders, including judges and prosecutors. Some departments have selected an officer to serve as a liaison on BWC issues. The liaison meets periodically with line officers wearing cameras to create a feedback loop regarding training, policy, and use of questions and concerns.

Some helpful considerations were shared by participants in the February 26-27 Bureau of Justice Assistance BWC Expert Panel. Specifically, Patricia Wolfhope, Senior Program Manager from the Science and Technology Directorate in the U.S. Department of Homeland Security, offered several considerations: "Training officers is highly dependent on what you want the outcome to be. When considering the technology, think about the use case first. How do you plan to use the video? Is it for evidence? Is it face recognition? Is it face detection? When officers start to see the payback of the cameras, then they buy-in and are more interested in the use of the technology. Technology is almost always ahead of privacy and policy issues."

Sergeant Dan Gomez of the Los Angeles (CA) Police Department indicated that its training was integrated into roll calls for every section, "so it would hit every unit." Gomez said, "we also did a pre-deployment training. We selected a field officer to be a liaison with the front-line troops for one-on-one interviews to get real feedback versus what they felt they had to tell implementation team and leadership. We required the vendor to participate in the training as well, but all training was led by cops to the cops. The team also trained the DA's office, who were also involved in policy discussions. A great success is the in-house train-the-trainer program, so each division had a BWC training designee. Transparency and accountability are intermixed. We expect the officer to do the right thing and focused the organization on this. When review of the video with the officer and the footage turns criminal in nature–the nature of the investigation is changed. If we know a criminal act has occurred, then the officer does not view the video–this is a different process. We educated the community that there are two different courses of action. The community didn’t know this and are satisfied with that role and expectations."

The PERF survey indicated that 94% percent of the agencies that have deployed BWCs use the video and audio footage to train officers. The report states, "Many police agencies are discovering that body-worn cameras can serve as a useful training tool to help improve officer performance. For example, agencies are using footage from body-worn cameras to provide scenario-based training, to evaluate performance of new officers in the field, and to identify new areas in which training is needed." (PERF 2014: 7)

For more information, see:

Police Executive Research Forum (PERF) for the Office of Community Oriented Policing Services, Implementing a Body-Worn Camera Program: Recommendations and Lessons Learned: http://www.justice.gov/iso/opa/resources/472014912134715246869.pdf

Video data storage is one of the most expensive aspects of body-worn camera (BWC) programs. Some manufacturers provide cloud-based storage. Law enforcement agencies that choose cloud-based storage typically have the option of paying by the amount of storage space that is used or paying on a per-officer/camera basis. However, some agencies elect to store data onsite locally. This requires the agency to purchase its own data storage system and store, retrieve, and share the video evidence, as well as develop the means to address chain-of-custody policies and laws of evidence.

The International Association of Chiefs of Police (IACP) has developed specific guidelines that departments should consider when contracting with third-party vendors for cloud-based data storage. Selected key issues include: the vendor’s system should be compliant with the FBI’s Criminal Justice Information Services Policy (CJIS); the law enforcement agency should retain ownership of the data; the vendor should be prohibited from mining or sharing data without consent from the agency; and the agency should be permitted to conduct audits of the vendor’s cloud system. Agencies should consult the IACP guide before contracting with third-party vendors for data storage.

For more information, see:

International Association of Chiefs of Police, IACP Technology Policy Framework: https://www.theiacp.org/sites/default/files/all/i-j/IACP%20Technology%20Policy%20Framework%20January%202014%20Final.pdf
Law Enforcement Information Management, 2013 Conference Opening Plenary, Leveraging the Cloud for Law Enforcement: https://www.theiacp.org/sites/default/files/all/c/CloudSurveyResults.pdf
International Association of Chiefs of Police, Guiding Principles on Cloud Computing in Law Enforcement: https://www.theiacp.org/sites/default/files/all/c/CloudComputingPrinciples.pdf
Institute for IBM Center for the Business of Government, Mitigating Risk in the Application of Cloud Computing in Law Enforcement: https://cdn.ymaws.com/www.ijis.org/resource/collection/232074EF-6453-4014-BC4E-018BF818D291/Mitigating_Risks_in_the_Application_of_Cloud_Computing_in_Law_Enforcement.pdf
Booz Allen Hamilton, Economics of Cloud Computing: Addressing the Benefits of Infrastructure Cloud: http://www.iceaaonline.com/ready/wp-content/uploads/2017/09/SOF09-Repczynski.pdf

Frequently Asked Questions

FAQs

Do body-worn cameras reduce use-of-force by law enforcement?

How are body-worn cameras different from dashboard cameras and CCTV systems?

How can body-worn cameras be integrated with other technologies such as facial recognition systems?

How does an officer body-worn camera work?

What is the best way to implement a body-worn camera program?

Do body-worn cameras change officer daily practices?

How can law enforcement agencies benefit from a body-worn camera program?

What are some of the concerns with a body-worn camera program?

Why was this Bureau of Justice Assistance National Body-Worn Camera Toolkit developed?

Do body-worn cameras assist with the investigation of community member complaints against law enforcement officers?

How long do law enforcement agencies have to store the video?

How do you decide when to release a video that may contain sensitive footage?

Who should deliver training to law enforcement officers about the deployment of body-worn cameras?

Should there be efforts by the law enforcement agency to educate the public about body-worn cameras?

What do law enforcement agencies need to do to prepare the prosecutor and other criminal justice agencies for the implementation of a body-worn camera program?