Testifying in Court: What to Say, What You're Paid, What to Do

Yes. A subpoena is a court order to appear and testify, and you must obey it unless a judge excuses you or the party that issued it withdraws it. Ignoring one can lead to a contempt finding, a penalty for disobeying the court. Penalties vary by state and can include fines and, in some places, an arrest warrant.

Do not stay silent and hope the date passes. Call the office that issued the subpoena and ask four things:

• What date, time and courtroom should you report to?
• What fee and mileage you will be paid, and whether it was tendered with the subpoena?
• Which documents, if any, you must bring?
• Whether they will tell you if the date changes or your testimony is no longer needed?

If you have a real conflict, such as illness, a medical procedure or pre-paid travel, tell them as early as possible with the reason. They can ask the court to release you. A witness who asks early is treated very differently from one who simply does not appear.

Relatives and friends can testify. In federal court, Federal Rule of Evidence 601 says every person is competent to be a witness unless a rule provides otherwise. State rules differ in detail, but a family relationship alone does not generally disqualify anyone. The judge or jury decides how much weight to give the testimony.

This page covers United States courts.

You wait, you are sworn in, the side that called you asks questions, the other side cross-examines you, and you step down. The order is the same in most courtrooms, and knowing it removes most of the surprise. The federal prosecutors' tips for testifying describe the same sequence.

Use short, fixed phrases, and never guess. These cover the situations that cause most stumbles. Rows 1, 2, 3, 6 and 7 follow federal prosecutors' guidance on testifying; rows 4, 5 and 8 are our recommendations.

Two rules sit under all of these. Answer only the question asked, because volunteering extra information is how witnesses wander into trouble. And testify to what you personally saw, heard or did, not to what you assume or were told.

Prepare the memory, not the wording. Recall the scene: where you stood, what was around you, the order of events, roughly how far or how long. Do not memorize a speech. Memorized testimony sounds rehearsed and falls apart the moment a question comes out of order.

Ask the lawyer who called you which of your own earlier statements and records you should review, and bring only what you are told to bring. Then rely on three habits:

• Let the whole question finish. Nervous witnesses answer early. Wait for the last word, then pause.
• Slow down. Fast answers sound anxious and are easier to get wrong.
• Stay polite when doubted. Cross-examination is not a personal attack. The quickest way to lose a listener's trust is to lose your temper.

Two worries deserve a direct answer. If a question could incriminate you, you have a right against self-incrimination under the Fifth Amendment. Tell the judge you wish to speak to a lawyer before answering, and do not guess your way through it. If you fear for your safety after testifying, tell the prosecutor's office or its victim-witness unit before the day. Do not treat it as something to endure silently. This page is general information, not legal advice for your case.

Witness fees are set by statute and differ by court. Among the five compared here they run from $10 a day in Texas civil cases to $40 in federal court, and some states pay less, such as Florida at $5 a day plus 6 cents a mile. Four of the five add mileage. The fee is not wages and does not replace a day's pay. Figures are current as of October 2026.

Worked example (our model). Assume a civil witness who lives 30 miles from the courthouse, so 60 miles round trip, attends one day, and is outside the county in Georgia. The calculation is the daily fee plus 60 miles times the mileage rate:

• Texas: $10.00, with no mileage.
• Minnesota: $20 + (60 × $0.28) = $36.80.
• California: $35 + (60 × $0.20) = $47.00.
• Georgia: $25 + (60 × $0.45) = $52.00.
• Federal: $40 + (60 × $0.76) = $85.60, using the General Services Administration mileage rate in effect from 1 July 2026.

Rates for criminal cases, police officers and expert witnesses can differ, and the subpoena or issuing office should state yours. If the fee is not tendered with a civil subpoena where the law requires it, raise that when you call. Tell your employer the day you receive the subpoena, because the fee will not cover lost wages.

Run this list when the subpoena arrives and again the night before. Each item is a test with a pass and a fail.

If you testify about your own work, your written report or affidavit is your testimony before you take the stand, and cross-examination will test every line of it against your memory. Preparation is a document review, not a performance.

Read your report from start to finish before the day. Mark which statements you saw yourself and which you were told, because only the first kind is your testimony. Do not add detail that is not in your notes. If your memory now differs from what you wrote, say so plainly and explain why. Being consistent with earlier statements is expected, and being honest about a mistake is better than defending it. Our guide on how to write investigation reports that hold up covers the report itself, and our interview techniques for investigators guide covers how the statements in it are gathered.

Process servers are usually called when a defendant disputes service. Federal courts require proof of service by the server's affidavit under Federal Rule of Civil Procedure 4(l); check your state's rule of civil procedure on whether a sworn affidavit of service counts as proof. Notes made at the time, with the time, place and person served, are what make your account hold. For first-time servers, see our guide to process server training for first-time servers, and find our self-paced training in the Process Server course category.

For investigators, our Legal Aspects of Private Investigation course ($120 as of October 2026, self-paced, 49 lessons) covers the rules of evidence that cross-examination relies on. Our Minnesota Pre-Assignment Course for Private Detectives/Investigators ($185, 12 hours) includes deposition and courtroom testimony as well as report writing. Your licensing board decides which courses count toward your license, so verify whether a PI course counts in your state before you enroll. To start with the evidence rules, open Legal Aspects of Private Investigation.