Ballistics Examiner

Ballistics Examiner carries out essential functions and this page lists 18 real tasks to illustrate what success looks like. Each task reveals who you coordinate with and what evidence guides choices. Each one shows where we found it, and comes with an AI prompt you can copy and use straight away.

18evidenced tasks
18ready prompts
8tools of the trade
19-4092.00O*NET-SOC code
19,120hold this job (US, BLS 2025)
$72,060median pay/yr (US)
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What it pays

Government survey numbers — not estimates, not ads.

Half of all Forensic Science Technicians in the U.S. earn more than $72,060 a year — the middle 80% land between $48,250 and $117,250. About 19,120 people in the U.S. do this work. Figures are for the U.S. occupation group “Forensic Science Technicians”. (U.S. Bureau of Labor Statistics survey, published 2025.) In India, Professionals earn about ₹38,298 a month on average — around ₹4.6 lakh a year (government PLFS survey via ILOSTAT, occupation-family figure).
$72,060typical pay / year
19,120people in this work
$117,250+top 10% earn
₹4.6 lakha year in India (family avg)
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The work, task by task

These are the real jobs-to-be-done, not a wish list. Each task shows where we found it, and the prompt underneath is written for that exact task.

Analysing3

Reconstruct crime scenes

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Reconstruct the downtown shooting scene on Elm Street: map bullet trajectories from the recovered casings and…
Reconstruct the downtown shooting scene on Elm Street: map bullet trajectories from the recovered casings and wall impacts, place the shooter and victim positions, photograph scaled measurements, then export a scene diagram and email it to Detective Morales by Tuesday with notes on uncertain sightlines.
The tools that do the workComputer aided design and drafting CADDjob descriptionsO*NET

Examine and analyze blood stain patterns

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Document and measure the bloodstain patterns from the kitchen scene at 42 Pine Avenue, photograph with scale,…
Document and measure the bloodstain patterns from the kitchen scene at 42 Pine Avenue, photograph with scale, record droplet size and angles, reconstruct likely positions and movements, then prepare a bloodstain analysis summary for the case file and Detective Ng by Monday.
The tools that do the workMicrosoft Visiojob descriptionsO*NET

Perform tests on weapons or substances

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Perform functional and firing tests on the seized pistol and run chemical analysis on residue from the barrel…
Perform functional and firing tests on the seized pistol and run chemical analysis on residue from the barrel and hands, log serial and condition, calibrate the chronograph first, record results in the weapon test report, and submit it to the prosecutor by Friday.
The tools that do the workMicrosoft Exceljob descriptionsO*NET
Fixing1

Operate and maintain laboratory equipment

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Inspect, calibrate and certify the laboratory ballistic comparator and the microscope this week, replace any…
Inspect, calibrate and certify the laboratory ballistic comparator and the microscope this week, replace any worn parts, run control samples to verify accuracy, log maintenance and calibration certificates, and notify the lab manager when complete.
The tools that do the workLinuxjob descriptionsO*NET
Keeping the record1

Testify as expert witnesses in court

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Prepare my courtroom testimony for next Wednesday: assemble chain-of-custody, exhibit photographs, ballistic…
Prepare my courtroom testimony for next Wednesday: assemble chain-of-custody, exhibit photographs, ballistic comparison report and a one-page expert summary, rehearse answers to probable cross-examination with Lead Counsel Alvarez, and upload exhibits to the court portal by close of business Monday.
The tools that do the workMicrosoft WordMicrosoft PowerPointjob descriptionsO*NET
The daily work13

Observe laboratory activities

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Observe the firearms comparison run in Lab 3 today, note each technician's steps, safety lapses, deviations…
Observe the firearms comparison run in Lab 3 today, note each technician's steps, safety lapses, deviations from SOP, and any equipment adjustments, then submit a concise observation report to Chief Forensic Scientist by 1700 with photos of the test setup attached.
The tools that do the workMicrosoft WordMicrosoft OutlookESCO

Record test sequences

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Record the live-fire test sequence on the bench: log shot number, ammunition lot, barrel and chamber…
Record the live-fire test sequence on the bench: log shot number, ammunition lot, barrel and chamber temperatures, breech markings, and time stamps continuously, then upload the time-stamped sequence file to the case folder and notify Detective Moreno.
The tools that do the workMicrosoft ExcelESCO

Prepare samples for testing

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Prepare three bullet and three cartridge case samples from Exhibit 21 for rifling and microscope analysis:…
Prepare three bullet and three cartridge case samples from Exhibit 21 for rifling and microscope analysis: clean, label with case and evidence numbers, document weights, and place in the designated evidence trays ready for microscopic comparison by 0900 tomorrow.
The tools that do the workMicrosoft WordESCOsee the evidence ↗

Laboratory techniques

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Perform the laboratory technique checklist on the comparison microscope before today's series: run the…
Perform the laboratory technique checklist on the comparison microscope before today's series: run the alignment grid, verify magnification calibration, note any drift or aberration, and sign off the calibration log so the next examiner can proceed.
The tools that do the workMicrosoft ExcelESCOsee the evidence ↗

Operate scientific measuring equipment

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Operate the ballistic chronograph and pressure sensor for three controlled shots: set sensor ranges, record…
Operate the ballistic chronograph and pressure sensor for three controlled shots: set sensor ranges, record muzzle velocity, note any anomalies in the raw readings, save the exported data file into the case directory, and flag values outside expected tolerances.
The tools that do the workLinuxESCOsee the evidence ↗

Train new technicians in forensic techniques

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Train two new technicians on safe evidence handling and basic toolmark comparison: run them through sample…
Train two new technicians on safe evidence handling and basic toolmark comparison: run them through sample preparation at the bench, demonstrate calibrating the comparison microscope, observe their fit of protective gear, then give a timed practical using three fired cartridge cases and debrief errors.
The tools that do the workMicrosoft PowerPointMicrosoft Wordjob descriptionsO*NET

Review forensic reports for technical merit

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Review Detective Ramos's three forensic reports for technical merit: verify sample chain of custody, check…
Review Detective Ramos's three forensic reports for technical merit: verify sample chain of custody, check microscope calibration logs, confirm measurement methods and statistics are appropriate, flag any deviations for a written correction and return to the analyst by Thursday.
The tools that do the workMicrosoft Wordjob descriptionsO*NET

Compare objects and impression marks

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Compare the two suspect bullets and three test-fired marks: mount each specimen on the comparison stage,…
Compare the two suspect bullets and three test-fired marks: mount each specimen on the comparison stage, photograph matching land and groove features, record measurement offsets, prepare a side-by-side report summarising congruent striae and differences for Detective Lee.
The tools that do the workAdobe PhotoshopMicrosoft Wordjob descriptionsO*NET

Examine firearms to determine mechanical condition and legal status, performing restoration work on damaged firearms to obtain information, such as serial numbers.

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Examine the recovered handgun for mechanical condition and legal status: inspect bore and firing pin, attempt…
Examine the recovered handgun for mechanical condition and legal status: inspect bore and firing pin, attempt controlled disassembly to reveal obliterated serial, document restoration steps and test-fireability, then prepare a property and legal-status memo for the prosecutor.
The tools that do the workMicrosoft WordO*NET

Create photographic and sketch-based documentation

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Create photographic and sketch documentation for case 21-048: photograph the spent casings and toolmarks with…
Create photographic and sketch documentation for case 21-048: photograph the spent casings and toolmarks with scale, draft a scene sketch showing evidence locations and measurement annotations, produce a photolog and labelled sketch packet for the file.
The tools that do the workMicrosoft VisioAdobe Photoshopjob descriptions

Operate digital media analysis tools

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Operate the lab's digital imaging workstation to extract and enhance toolmark images: import the…
Operate the lab's digital imaging workstation to extract and enhance toolmark images: import the high-resolution captures, run noise reduction and contrast normalization, export TIFFs and a contact-sheet PDF for the comparing examiner and lodge copies in the case file.
The tools that do the workAdobe PhotoshopMicrosoft Exceljob descriptions

Wear appropriate protective gear

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Put on the full set of protective gear for the range lab: ballistic-rated apron, cut-resistant gloves, safety…
Put on the full set of protective gear for the range lab: ballistic-rated apron, cut-resistant gloves, safety glasses with side shields, hearing protection, and respirator, confirm seals fit, log the PPE kit serials and time before handling any evidence or samples.
The tools that do the workMicrosoft WordESCOsee the evidence ↗

Calibrate laboratory equipment

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Calibrate the comparison microscope and test-fired bullet measuring stage using the certified gauge block set…
Calibrate the comparison microscope and test-fired bullet measuring stage using the certified gauge block set and calibration target, record the before/after readings and calibration certificate numbers in the equipment log, then schedule the next competency check.
The tools that do the workMicrosoft ExcelESCOsee the evidence ↗

Says who?

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The logs, files & records this job keeps

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Related careers

Same family of work — each with its own tasks and prompts.

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