The list of investigation acronyms and abbreviations.

All investigation related acronyms and abbreviations.

Stands For|0Abbreviated As|5Related|31
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NARPO:
National Association of Retired Police Officers
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NCISS:
National Council of Investigation & Security Services
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PIAM:
Professional Investigators Alliance of Maryland(Private investigation)
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SAS:
Security Association Singapore(Private investigation, Investigation)
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SIA:
Security Industry Authority(Private investigation, Investigation)
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SIT:
Special Investigation Team(Investigation, India)
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SOA:
Sheriffs Officers Association(Private investigation, Investigation)
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UKPIN:
United Kingdom Professional Investigators Network
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WAD:
World Association of Detectives(Private investigation, Investigation)
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WAPI:
World Association of Professional Investigators(Private investigation)
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WIN:
World Investigators Network(Private investigation, Investigation, Business)
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APASmart Define. (2018). investigation. Retrieved September 28, 2026, from http://smartdefine.org/investigation/abbreviations/r
ChicagoSmart Define. 2018. "investigation" http://smartdefine.org/investigation/abbreviations/r (accessed September 28, 2026).
HarvardSmart Define 2018, investigation, Smart Define, viewed 28 September, 2026, <http://smartdefine.org/investigation/abbreviations/r>.
MLASmart Define. "investigation" 19 February 2018. Web. 28 September 2026. <http://smartdefine.org/investigation/abbreviations/r>