Legal Interpreter and Document Translation Services
How NAEGELI Deposition & Trial sourced, vetted, and prepared legal interpreters and document translation services for a workers’ compensation case

Executive Summary
A California workers’ compensation firm needed a court reporter and a Punjabi interpreter for a deposition in Yuba City. It was their first time working with a full-service litigation support firm. The experience, and the level of preparation that came with it, was unlike anything they had encountered before. This case study examines how NAEGELI sources and vets legal interpreters, prepares them with case-specific materials and terminology before every assignment, and navigates certification requirements across jurisdictions.
The names of individuals, law firms, companies, and case-specific details in this article have been changed to protect the confidentiality of our clients and all parties involved. The events, services, and outcomes described are real.
A deposition involving a non-English speaking witness comes with challenges. The right interpreter does not only speak the language, they understand the dialect, the cultural context, the legal terminology, and the certification requirements of the jurisdiction they are working in. A Spanish interpreter unfamiliar with Cuban colloquialisms can miss the meaning of what was intended. A Punjabi interpreter with no background in workers’ compensation proceedings may struggle with the medical and occupational vocabulary that defines the testimony.
That was the reality facing Elena Velasco, a paralegal at Castillo Vega Law, a California workers’ compensation firm with a deposition scheduled in Yuba City. Her witness spoke Punjabi. The case centered on a workplace injury claim with medical testimony at its core. She had never navigated a proceeding quite like this one, and she knew that choosing an interpreter was not a decision she could take lightly. She called NAEGELI.
Legal Interpreter Services for Depositions: How NAEGELI Manages the Intake Process
The moment an interpreter request comes in, the NAEGELI Scheduling team is already thinking ten steps ahead.
Before an interpreter is assigned, the team wants to know the subject matter of the case. A workers’ compensation deposition involving a Punjabi-speaking agricultural claimant requires a different interpreter than a deponent in a contract dispute. The vocabulary is different. The cultural context is different. The preparation that needs to happen before the interpreter walks through the door is different.
Workers’ compensation depositions in California’s Central Valley requiring Punjabi interpreters are not new territory for NAEGELI. The agricultural community around Yuba City has a long history of Punjabi-speaking residents, and cases involving workplace injuries in that area share a similar vocabulary and line of questioning. Those background details determine which interpreter NAEGELI assigns to the case.
Before an interpreter can be considered, their qualifications are put through a rigorous review. How many depositions has this interpreter completed? What is their experience in workers’ compensation or personal injury proceedings? Are they familiar with the specific medical and occupational terminology the case is likely to involve? The goal is never simply finding a qualified interpreter. It is securing the interpreter whose background is the best fit.
“The questions we ask before placing an interpreter are not a formality. They determine whether the right person walks through the door. ”
Legal Interpreter Certification Requirements: What Attorneys and Paralegals Need to Know
One of the first things the NAEGELI team confirms on any interpreter request is what certifications are required.
In the United States, only three languages are recognized at the federal level for interpreter certification: Spanish, Navajo, and Haitian Creole. Although, the Navajo and Haitian Creole certification tests have since been discontinued due to low interest and an inability to maintain consistent standards. Every other language is governed at the state level, and states vary considerably in what they recognize and require. Some states have developed their own certification programs for languages with large local populations. Others have no certification pathway for a given language at all.
Whether a certified interpreter is legally required for a state, county, or municipal court proceeding depends on two things: whether the state offers a certification for that language, and whether a certified interpreter can be secured. If a state offers certification and a certified interpreter is available, that certification is mandatory. If certification exists but no certified interpreter can be scheduled, courts will typically allow a registered or Professionally Qualified interpreter to proceed in their place. If no certification pathway exists for the language in that jurisdiction, the requirement does not apply.
California recognizes Punjabi as a certifiable court interpreter language, and Castillo Vega Law requested one for their deposition. If this case ever moved to trial, a certified interpreter would not have been optional. NAEGELI was able to deliver because of their deep familiarity with certification requirements across the United States and the years they have spent building relationships with local interpreter communities.
Preparing an Interpreter for Depositions: What Happens Before the Assignment
Assigning an interpreter is only the beginning.
Once an interpreter is identified and confirmed, they receive the subject matter of the case, the type of proceeding, and a notice of deposition. This background information gives the interpreter a clearer picture of what the proceeding will involve and what questions are likely to be asked. In cases where exhibits will be introduced, those materials are sent to the interpreter in advance whenever possible, so they can prepare the appropriate vocabulary.
NAEGELI makes thorough preparation standard practice, because prepared interpreters are more confident, more composed under pressure, and better equipped to handle the technical terminology that legal proceedings routinely produce. Decades of placing interpreters across every type of legal proceeding has refined what that readiness process looks like.
“What stood out was how much thought went into every assignment. It was not just booking a name and sending a confirmation. There was real depth behind it. ”
Legal Interpreters for Workers’ Compensation and Personal Injury Depositions
Workers’ compensation and personal injury are practice areas where interpreter services come up often.
Claimants in workers’ compensation cases are frequently non-English speakers, particularly in industries like agriculture, construction, and manufacturing. The attorneys handling these cases move fast, and the window for capturing testimony on the record is often narrow. In this practice area, having a qualified interpreter available on short notice can be one of the most powerful tools in a legal team’s arsenal.
Spanish is by far the most requested language in workers’ compensation proceedings, and NAEGELI manages an active team of vetted Spanish interpreters across the nation. For attorneys and paralegals managing high volumes of these cases, the ability to book a court reporter and interpreter through a single firm means one call, one confirmation, and one point of contact when anything changes.
Videography is another service that personal injury attorneys frequently pair with interpreters. When a claimant speaks limited English, the visual reality of their injuries can carry more weight than a written account. NAEGELI Legal Videographers capture the real impact of a witness’s condition by positioning high-grade cameras to capture them clearly, monitoring audio for the duration of their testimony, and delivering a professionally edited video synchronized to the certified transcript.
Legal Interpreting vs. Document Translation: What is the Difference?
Castillo Vega Law had made NAEGELI their first call for interpreter services. Then came a request for something different.
Elena Velasco needed a document professionally translated and certified, a service that NAEGELI provides, but differs from interpreting in several major ways.
An interpreter works in real time, converting spoken language in the moment. A translator works with written material, converting documents or audio recordings from one language to another with time to proof. The two disciplines require different training, different skill sets, and in many cases different certifications. Some experienced practitioners can do both, but they are rare.
For document translation, NAEGELI follows a specific process. First, the language and subject matter of the request is reviewed, and the appropriate translator is assigned. After the document is translated, the translator signs an affidavit attesting to its accuracy, and notarizes the document so it may be entered as evidence or submitted to a court.
Translated documents can range from legal transcripts and contracts to medical records, correspondence, and official filings from other countries. A workers’ compensation case might require the translation of an injury report filed in another language. An immigration matter might hinge on the accuracy of a birth certificate or set of academic credentials. A personal injury case might require translating medical records from a foreign hospital.
“People think translation is just swapping one language for another. What they do not see is the review process, the subject matter matching, the affidavit, the notarization. There is a lot of work between receiving a document and delivering one. ”
The Outcome: A Single Assignment That Became a Lasting Partnership
The Yuba City deposition went smoothly. The interpreter was prepared, the court reporter was in place, and the proceeding moved forward without complication. For Castillo Vega Law, what stood out was not just the work done during the deposition but everything that happened behind the scenes. The subject matter review that shaped who was selected, the case materials sent to the interpreter before the assignment, the day-before confirmation that verified every detail was in place.
When a document translation request came in, NAEGELI reviewed the document, matched a translator to the subject matter, and delivered a notarized, signed translation.
For a law practice that had never worked with a full-service litigation support firm before, the experience changed what they thought was possible. Court reporting, interpreting, translation, all services they had been sourcing separately were now available through one call to one team that already knew their preferences and their cases.
Working with a Legal Interpreter for the First Time? Here Is What to Expect from NAEGELI
Whether your case involves a single deposition with a non-English speaking witness or a series of proceedings requiring both certified interpreters and document translation, the experience of working with NAEGELI stays consistent. Precise, prepared, and tailored to your firm.
For over 45 years, NAEGELI Deposition & Trial has supported legal teams through every phase of litigation. We provide court reporting, transcription, professional videography, remote and hybrid deposition services, legal interpreters, document translation, and trial support, backed by a scheduling team that always answers the phone.
We think ten steps ahead, so our clients never have to.
To speak to a Client Executive, call (800) 528-3335, email schedule@naegeliusa.com or chat with a live expert through our website.
Frequently Asked Questions: Legal Interpreting and Document Translation
What is the difference between a legal interpreter and a legal translator?
A legal interpreter works in real time, converting spoken language during a deposition, hearing, or other proceeding. A legal translator works with written or recorded material, producing a written translation of a document or audio recording. The two disciplines require different training and different skill sets. Some practitioners are qualified to do both, but they represent a smaller subset of the overall professional pool. NAEGELI provides both services.
Does my deposition interpreter need to be certified?
It depends on the language and the jurisdiction. In the United States, only Spanish, Navajo, and Haitian Creole are recognized for certification at the federal level. All other languages are governed by individual states, and certification requirements vary. If a state offers certification for a given language and a certified interpreter is available, that certification is mandatory for state, county, and municipal court proceedings. If certification exists but no certified interpreter can be secured, courts will typically allow a registered or Professionally Qualified interpreter to proceed in their place. If no certification pathway exists for that language in that jurisdiction at all, a Professionally Qualified, registered, or skilled interpreter approved by the court is all that is required. NAEGELI Deposition & Trial is familiar with certification requirements across all 50 states, and confirming compliance is standard procedure.
What languages does NAEGELI provide interpreters for?
NAEGELI provides interpreters for over 200 languages, including American Sign Language. For languages where local interpreter availability is limited, NAEGELI can source remote interpreters who meet the certification and subject matter requirements of the case.
How does NAEGELI prepare interpreters before an assignment?
Every interpreter receives the subject matter of the case, the type of proceeding, and any available background materials before the assignment. Where exhibits are involved, those are shared in advance when the client can provide them. The goal is for the interpreter to arrive at the deposition already familiar with the vocabulary, the context, and the expected talking points of the proceeding. The day before the assignment, NAEGELI verifies with the interpreter that all relevant information has been received and communicates any last-minute updates from the client.
Can I request the same interpreter across multiple proceedings?
Yes. When a client has a positive experience with a specific interpreter, that preference is noted and honored whenever the interpreter is available for future assignments.
What happens if a certified interpreter is not available in my area?
NAEGELI will source a remote interpreter who holds certification from a state that does offer it for that language, or will identify the most qualified available interpreter and advise the client on how to proceed given the jurisdiction’s requirements. Courts recognize that certified interpreters are not always geographically available, and in those cases, a registered or Professionally Qualified interpreter is typically accepted. NAEGELI navigates this on the client’s behalf, so they always have coverage and clarity.
Can NAEGELI handle both interpreting and document translation for the same case?
Yes. Interpreting and translation are separate services handled by different specialists, but both are available through NAEGELI and can be coordinated through the same team. Clients who begin with interpreter services frequently request professional translation later on. All translated documents are signed with an affidavit of accuracy and notarized as part of the standard delivery process.
To speak to a Client Executive, call (800) 528-3335, email schedule@naegeliusa.com or chat with a live expert through our website.







