How we know this
This job isn’t in the U.S. government’s occupational survey yet, so this page carries no official pay figures. Everything below is drawn from published job descriptions and industry guides, each one linked at the foot of the page. The work described is real and sourced. What’s missing is the survey’s rating of which parts of the job matter most — so read this as a picture of the work, not a ranked list.
Think you get this job?Six quick questions on how it really works — with a hint and the reason behind every answer.
Test yourself →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.
Receive and inventory fire debris evidence
+Receive the evidence submission from Officer Martinez, log each item with its chain-of-custody sticker, weigh…
Receive and inventory fire debris evidence
+Receive the evidence submission from Officer Martinez, log each item with its chain-of-custody sticker, weigh and photograph every debris bag, label samples with lab IDs, note visible accelerant odors, store items in evidence refrigerator and flag any biohazard for follow-up.
The tools that do the workElectronic nose (E-Nose) softwareweb
Pasted it? Good. When the reply comes back, push once: ask it to sharpen the weakest part. — Did this prompt help?
Process fire debris samples to identify trace evidence
+Extract volatile fractions from the four debris swabs from 14 Maple Street, run the analytical sequence to…
Process fire debris samples to identify trace evidence
+Extract volatile fractions from the four debris swabs from 14 Maple Street, run the analytical sequence to generate chromatograms, compare spectra to laboratory reference mixes, flag candidate ignitable liquids and draft a preliminary findings note for the case file.
The tools that do the workGC-MSChemometric analysis tools (e.g., hierarchical cluster analysis, linear discriminant analysis)web
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Operate SEM and GC-MS instrumentation for analysis
+Mount particulate samples and coal-tar residue, run the electron micrographs to identify morphology, then run…
Operate SEM and GC-MS instrumentation for analysis
+Mount particulate samples and coal-tar residue, run the electron micrographs to identify morphology, then run the volatile analysis sequence on the same samples to correlate microscopic debris with chromatographic signatures and save all raw instrument files to the case folder.
The tools that do the workGC-MSweb
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Perform routine maintenance and troubleshooting of laboratory instruments
+Perform daily checks on the mass spectrometer and sampling interface: inspect seals, run the system tune,…
Perform routine maintenance and troubleshooting of laboratory instruments
+Perform daily checks on the mass spectrometer and sampling interface: inspect seals, run the system tune, replace the inlet liner if pressure drift exceeds limits, document any faults and corrective actions in the instrument log, and escalate unresolved faults to engineering before end of shift.
The tools that do the workGC-MSweb
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Develop and validate new test methods and instrumentation
+Design a validation plan for the new passive vapor collection method: specify acceptance criteria, prepare a…
Develop and validate new test methods and instrumentation
+Design a validation plan for the new passive vapor collection method: specify acceptance criteria, prepare a set of spiked substrates at three concentrations, run inter-day reproducibility tests, analyse results against the current method and write the validation report for peer review.
The tools that do the workChemometric analysis tools (e.g., hierarchical cluster analysis, linear discriminant analysis)GC-MSweb
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Says who?
These are the pages we read to build this. Open any of them and check us.
Related careers
Same family of work — each with its own tasks and prompts.
The LLOS Work Atlas is the world's largest evidenced task library — a map of human work, with a ready prompt behind every task. 1,774 careers · every task named by the sources that witnessed it — O*NET, ESCO, real job descriptions, Wikipedia — and the deepest tasks by several at once. And it is honest about limits: where AI cannot help, the map says so.
The rest of the map
Same library, five ways in.
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Built on public evidence: O*NET®, ESCO, Wikipedia, U.S. Bureau of Labor Statistics, ILOSTAT. All sources & licenses
Built on public evidence: O*NET®, ESCO, Wikipedia, U.S. Bureau of Labor Statistics, ILOSTAT. All sources & licenses