An interactive resource for public defense providers
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The National Public Defense Workload Study solves this problem and allows public defense providers to reliably estimate the number of attorneys needed.
Public defense workload studies typically use a panel of expert defense attorneys to determine the average attorney time necessary to provide competent, reasonably effective representation in specific case types. The resulting calculations are expressed as hours per case and are commonly called standards by public defense providers or case weights by researchers.
The National Public Defense Workload Study used 17 previous jurisdiction-specific public defense workload studies and a national panel of experience defense attorneys to determine the standards (case weights) for 11 types of adult criminal cases.

The results are intuitive. On average, less serious cases take less time, and more serious cases take more time.
This website provides a roadmap for public defense providers to apply the NPDWS standards, calculate their current attorney time needs, and determine whether their office or system has enough attorneys. It also addresses Frequently Asked Questions about this and other uses of the NPDWS standards.
The NPDWS reviewed and considered the methods used in 17 jurisdiction-specific workload studies conducted between 2005 and 2022. In many of those studies, attorneys from the study jurisdiction determined the case types by considering how best to group cases that required similar attorney work. The NPDWS research team then reviewed the case types from these prior studies to identify the 11 case types used in the NPDWS. NPDWS at x (see also Chapter 3).
The research team noted that: “(1) the [case types] must be defined in a way that would translate into various state criminal codes in a straightforward manner, (2) they must reflect reasonable assumptions about relative differences between average attorney time expenditures, and (3) they must make intuitive sense to experienced defenders when asked to consider their own caseloads without requiring them to refer to a detailed list of statute citations.” NPDWS at 58.
The 11 NPDWS case types are:
• Felony–High–Life Without Parole (LWOP)
• Felony–High–Murder
• Felony–High–Sex
• Felony–High–Other
• Felony–Mid
• Felony–Low
• Driving Under the Influence (DUI)–High
• DUI–Low
• Misdemeanor–High
• Misdemeanor–Low
• Probation and Parole Violations
A national panel of 33 defense attorneys experienced in state courts participated in the process for determining the NPDWS standards. For each of the 11 case types, these attorneys considered the time needed for each of eight attorney task categories:
• Client Communication and Care
• Discovery and Investigation
• Experts
• Legal Research, Motions Practice, and Other Writing
• Negotiations
• Court Preparation
• Court Time
• Sentencing and Mitigation and Postadjudication
In estimating the time needed for each of these activities for each case type, the attorneys were asked to consider the time needed to provide “reasonably effective assistance of counsel.” In considering this standard, panel members were instructed to draw on the “‘prevailing professional norms’ of practice and applicable ethical rules for understanding what a criminal defense attorney needs to do for each and every client.” NPDWS at 53. The panel attorneys also received a summary of the 17 jurisdiction-specific public defense workload studies.
The panel attorneys first provided their independent “best estimate of the average time needed to provide reasonably effective assistance of counsel pursuant to prevailing professional norms for each activity type within each case type.” NPDWS at xi (see also Chapter 4 at 77-79). Then, the full panel met in person to compare and discuss their estimates. The goal of the discussion was to reach a reasonable level of consensus on the time needed for each case type.
Before discussion began, each attorney entered their initial estimates into a computer program, which allowed participants to see the range of responses by case type. NPDWS at 80-81. The research team then facilitated a discussion of the different case types, the necessary attorney tasks, and the time required to provide reasonably effective assistance of counsel. Throughout the discussion, each of the attorneys could change their estimates of needed time for each task but were not required to do so.
Discussion continued until a sufficient level of agreement among the panel participants was reached. NPDWS at 82.
Note: The NPDWS used a coefficient of variation to assess when the level of agreement among panel participants was sufficient. A coefficient of variation is a statistical measure that compares the data distribution against a data measure, here the median. For more on the level of agreement required by the NPDWS, see NPDWS at 82-85.
The NPDWS standard (case weight) is the average time needed to provide reasonably effective assistance of counsel in a case of that case type. In other words, the standard considers very simple cases, typical cases, and very complex cases of the case type, the time required across these degrees of complexity, and the likelihood of these different levels of complexity. The standard is an average, but, importantly, average is not necessarily typical. Indeed, it may be rare for any individual case to require exactly the NPDWS standard number of hours. Cases that go to trial will often take much longer, while cases that resolve earlier often take less time. Cases with extraordinary amounts of digital discovery will take more time, while cases with very clear video evidence will take less time.
Consider an attorney who has ten Misdemeanor-Low cases (cases A-J). The standard (case weight) for Misdemeanor-Low cases is 13.8 hours.
The total amount of attorney time required for all ten cases is 136 hours (9 cases x 4 hours + 1 case x 100 hours). This is very close to the standard (case weight) time for ten Misdemeanor-Low cases (10 x 13.8 = 138 hours).
Table X. Example: Actual case time v. Standard (case weight)
|
Attorney time (hours) |
||
|
Case |
Actual |
Case weight |
|
A |
4 |
13.8 |
|
B |
4 |
13.8 |
|
C |
4 |
13.8 |
|
D |
4 |
13.8 |
|
E |
4 |
13.8 |
|
F |
4 |
13.8 |
|
G |
4 |
13.8 |
|
H |
4 |
13.8 |
|
I |
4 |
13.8 |
|
J |
100 |
13.8 |
|
Total |
136 |
138 |
The NPDWS did not include capital crimes because (1) clients facing capital charges are often represented by specialized counsel; (2) separate standards apply to capital defense; and (3) capital cases have historically been subject to a higher level of scrutiny, including with regard to caseloads. Moreover, because only about half the states have death penalty cases, many of the attorneys on the NPDWS panel lacked the experience necessary to estimate the time needed for effective capital representation.
The NPDWS also did not examine juvenile court cases, dependency cases, appellate cases, postconviction relief cases, contempt cases, sentence modification cases, or civil commitment cases, among others. The NPDWS “did not include these types of representations because of the significant diversity between states in the procedural and substantive law applicable to such proceedings[.]” NPDWS at 60. Additionally, “local public defense delivery systems differ markedly as to whether defenders would be appointed to represent clients in matters[.]” NPDWS at 60. Moreover, specialty public defense attorneys often handle these case types, which would have required the NPDWS research team to convene separate expert panels with the necessary experience for each of these case categories. See, e.g., The New Mexico Project (ABA 2022) (using three separate panels to determine Adult Criminal, Appellate, and Juvenile case weights) ; The Oregon Project (ABA 2022) (using two separate panels to determine Adult Criminal and Juvenile case weights); The Indiana Project (using four separate panels to determine Adult Criminal, Juvenile Dependency, Juvenile Delinquency, and Appellate case weights).
Public defense providers commonly use the NPDWS standards to determine the number of attorneys needed to address the next year’s projected caseload. The provider can then compare the number of attorneys needed to their current attorney staffing to determine whether they have enough attorneys and, if not, how many additional attorneys they need.
There are five steps necessary to complete this calculation. To complete these steps, a provider will need some data from their jurisdiction (e.g., the caseloads from the last few years and attorney staffing numbers). A provider will also need to make some decisions or complete some calculations about their jurisdiction, e.g., how many hours do your attorneys have each year to work on their cases (vs. attend trainings or meetings, take vacation or sick leave, drive to court locations, etc). This website walks public defense providers through each of these steps, describing the data needed and calculations that must be preformed.
The five necessary steps for using the NPDWS to determine whether a provider has enough attorneys are:





The NPDWS standards (case weights) can be converted into other types of standards, e.g., case credits (relative case weights) or annual caseload standards. They can also be used for a number of other purposes, including understanding the impact of law changes on attorney staffing needs and monitoring individual attorney workloads.
In using the NPDWS, it is important to remember that the standards (case weights) reflect the average attorney hours per case needed to provide reasonably effective assistance of counsel. They are most reliable when applied to a large number of cases, such as evaluating the number of attorneys a system or office needs.

When applying the NPDWS standards (case weights) to a smaller numbers of cases, e.g., evaluating an attorney’s caseload or the hours spent on a case, it is preferable to consider additional details about the particular case, attorney and circumstances.