Polygraph examiner to criminal investigator
A polygraph examiner already meets 26% of what the criminal investigator role asks for. The move turns on 6 required skills not yet in the profile.
67.1/ 100
1 How much of what a criminal investigator is expected to do is already part of a polygraph examiner’s work. Directional: the figure for the reverse move differs, because moving into a speciality is not the same problem as moving out of one. 2 Every skill the criminal investigator role is recorded as needing, required and optional together. What these numbers mean.
Why this move works
A criminal investigator role treats 2 of its required skills as things a polygraph examiner already does. You would walk in with these on day one.
- forensic intelligence
- write work-related reports
What stands in the way is 6 required skills the profile does not yet cover. Table 3 groups them; Table 4 says which to take first.
Table 2 · What you already bring
Of the 7 skills that carry over, these are the ones fewest other occupations ask for. A criminal investigator role needs them, and most people applying for one will not have them already. This is the part of a polygraph examiner background worth leading with.
- already held forensic intelligence services
- already held criminology social sciences, journalism and information
- already held present evidence communication, collaboration and creativity
- already held promote human rights communication, collaboration and creativity
- already held criminal law business, administration and law
- already held comply with legal regulations assisting and caring
All 7 carried skills, including the 2 the criminal investigator role treats as required.
Table 3 · What you may need to learn
The 19 missing skills fall into 6 areas of the ESCO skill hierarchy, numbered in the order worth working in. Areas carrying the most required skills come first, and inside each one the required skills sit above the optional ones. Nothing here is a verdict on you: it is a list of what this particular job asks for that your current one does not.
- still to learn document evidence required
- still to learn examine crime scenes required
- optional, not held analyse blood patterns optional
- optional, not held detect finger prints optional
- optional, not held evaluate forensic data optional
- optional, not held investigate forgery cases optional
- optional, not held perform drug investigations optional
- optional, not held assess contamination optional
- optional, not held perform forensic examinations optional
- optional, not held perform risk analysis optional
- optional, not held undertake inspections optional
- still to learn handle case evidence required
- optional, not held maintain operational communications optional
- optional, not held use different communication channels optional
- still to learn photograph crime scenes required
- optional, not held perform laboratory tests optional
- still to learn restrict access to crime scene required
- still to learn crime scene preservation required
- optional, not held clean crime scenes optional
Table 4 · Where to start
The 3 entries a criminal investigator role is least likely to hire without. The ordering is computed from the skill data, not from what pays.
- 01 photograph crime scenes practise this
- 02 restrict access to crime scene practise this
- 03 crime scene preservation study this
Each entry opens a course search for that skill. Career Overlap earns nothing from these links.
Appendix · The rest of the record
All 7 skills that carry over
- already held forensic intelligence knowledge
- already held write work-related reports skill
- already held comply with legal regulations skill
- already held criminal law knowledge
- already held criminology knowledge
- already held present evidence skill
- already held promote human rights skill
13 supplementary skills, helpful but not required
- optional, not held analyse blood patterns optional
- optional, not held clean crime scenes optional
- optional, not held detect finger prints optional
- optional, not held evaluate forensic data optional
- optional, not held investigate forgery cases optional
- optional, not held perform drug investigations optional
- optional, not held assess contamination optional
- optional, not held maintain operational communications optional
- optional, not held perform forensic examinations optional
- optional, not held perform laboratory tests optional
- optional, not held perform risk analysis optional
- optional, not held undertake inspections optional
- optional, not held use different communication channels optional
21 held skills the criminal investigator role does not ask for
- not needed by the target role analyse legal evidence skill
- not needed by the target role assess character skill
- not needed by the target role assist police investigations skill
- not needed by the target role conduct research interview skill
- not needed by the target role create criminal profiles skill
- not needed by the target role deal with aggressive behaviour skill
- not needed by the target role document interviews skill
- not needed by the target role human physiology knowledge
- not needed by the target role interrogate individuals skill
- not needed by the target role interview techniques knowledge
- not needed by the target role investigation research methods knowledge
- not needed by the target role maintain professional administration skill
- not needed by the target role manage tests skill
- not needed by the target role observe confidentiality skill
- not needed by the target role observe human behaviour skill
- not needed by the target role profile people skill
- not needed by the target role provide testimony in court hearings skill
- not needed by the target role psychology knowledge
- not needed by the target role psychophysiology knowledge
- not needed by the target role report analysis results skill
- not needed by the target role use technology for forensics skill
1 gaps that are knowledge rather than practice
Knowledge gaps usually close through study. Practical skill gaps usually need something you can point at.
- still to learn crime scene preservation required
Common questions about this move
Can a polygraph examiner become a criminal investigator?
Yes, and it is a substantial move. A polygraph examiner already covers 26% of what a criminal investigator is expected to do: 7 skills carry over, 2 of which the criminal investigator role treats as required.
What skills does a polygraph examiner need to become a criminal investigator?
6 required skills are missing, plus 13 optional ones. They fall into 6 areas of the ESCO skill hierarchy, led by information skills. The single most important is photograph crime scenes.
How hard is the move from polygraph examiner to criminal investigator?
Its learning distance is 67.1 out of 100, which is the substantial band. That accounts for both how much is missing and how specialised those skills are.
How this record was compiled
Both occupations are taken from ESCO, which lists the skills and knowledge each occupation is expected to have and marks every one required or optional. Nothing here is a prediction about hiring, and nothing here knows that a particular employer wants a particular certificate. Treat Table 3 as a starting point for your own research rather than a syllabus. The full method states what these figures can and cannot tell you.