None possible without a state licence; Louisiana's board lists Mississippi among states with no PI licensing law.
Recording calls
One-party consent
GPS trackers
No Mississippi statute bans fitting a tracker to a vehicle; the stalking law (Miss. Code 97-3-107) can apply where tracking forms part of a course of conduct aimed at a person. The Legislature's 2025 and 2026 measure lists contain no bill on vehicle tracking.
Firearms
No investigator-specific firearms rule. General state carry law applies, and the Department of Public Safety issues firearm permits, including the enhanced carry licence.
Reference information, not legal advice. Each profile lists its sources and the date it was checked.