Licensing for private investigators is different from state to state.  It is important to know the rules and guidelines in this industry if you're going to take this job seriously and do it well. 

Private investigator licensing information state by state

Alabama Private Investigator Licensing
There is no state licensing for private investigation in the state of Alabama.
http://www.ador.state.al.us/

Alaska Private Investigator Licensing
At this time there is no P.I. Licensing requirements in Alaska.
There is a Process Server Lic. Requirement through Alaska DPS.
Fairbanks City Licensing Law

Arizona Private Investigator Licensing
Web Site: http://www.dps.state.az.us/

Arkansas Private Investigator Licensing
Arkansas Department of Private Investigators and Private Security Agencies
Web Site:http://www.asp.state.ar.us/pl/pl.html
State Law: http://www.azleg.state.az.us/ars/32/title32.htm

California Private Investigator Licensing
Department Of Consumer Affairs, Licensing Division, Bureau of Security and Investigative Services
Web Site:http://www.dca.ca.gov/bsis/
State Law: http://www.dca.ca.gov/bsis/publications/bsiscons.htm

Colorado Private Investigator Licensing
There is no licensing requirements in Colorado.

Connecticut Private Investigator Licensing
Dept of Public Safety, Division of State Police,294 Colony Street, Meriden CT 06450
Phone (860) 685-8470 Fax (860) 685-8353
Web Site: http://www.state.ct.us/dps/SLFU/PrivateDetectivesHome.htm

Delaware Private Investigator Licensing
Detective Licensing, Delaware State Police, P. O. Box 430, Dover, DE 19903,
Phone: (302) 736-5900.
Web Site:http://www.state.de.us/dsp/

District of Columbia Private Investigator Licensing
Security Officers Mgmt Branch, Metro Police, Security Unit 2000, 14th St. NW, Washington, DC 20009.
Phone: (202) 939-8722
Website: http://mpdc.dc.gov/main.shtm

Florida Private Investigator Licensing
Department of Agriculture and Consumer Services, Division of Licensing, Box 6687
Tallahassee FL 32314
Phone (850) 487-0482
Web Site:http://licgweb.doacs.state.fl.us/
Check Investigator License:http://licgweb.dos.state.fl.us/access/individual.html
Handbook http://licgweb.doacs.state.fl.us/investigations/index.html
State Law: http://tinyurl.com/3d935

Georgia Private Investigator Licensing
State Board of Private Detective and Security Agencies, 237 Coliseum Drive, Macon GA 31217
Phone (478) 207-1460
Web Site: http://www.sos.state.ga.us/plb/detective/default.htm

Hawaii Private Investigator Licensing
Department of Commerce and Consumer Affairs, DCCA-PVL ATT: PDG, P.O. Box 3469 Honolulu, HI 96801, Phone (808) 586-2701
Email: detective@dcca.hawaii.gov
Website: http://www.hawaii.gov/dcca/pvl/areas_private_detective.html
State Law: http://www.hawaii.gov/dcca/hrs/index.html

Idaho Private Investigator Licensing
There is no licensing requirements in the state of Idaho.

Illinois Private Investigator Licensing
Illinois Department of Professional Regulation
Phone (217)785-0800
Fax: (217)782-7645 FAX
Website: http://www.ildpr.com/WHO/dtct.asp

Indiana Private Investigator Licensing
Indiana Professional Licensing Agency
Phone: (317) 234-3040 Staff e
Email: pla11@pla.state.in.us
Website: http://www.in.gov/pla/bandc/detective/
State Law: http://www.in.gov/legislative/ic/code/title25/ar30/

Iowa Private Investigator Licensing
Administrative Services Div., Iowa Dept of Public Safety
Phone: (515) 281-3211.
STATE LAW: http://www.state.ia.us/government/dps/iowacode/cd9780a.htm

Kansas Private Investigator Licensing
Kansas Bureau of Investigation
Phone  (785) 296-8200
Email: http://www.accesskansas.org/kbi/email.shtml
Website: http://www.accesskansas.org/kbi/

Kentucky Private Investigator Licensing
Kentucky Board of Licensure for Private Investigators,Box 1360, Frankfort KY 40601, Lisa Shelley Office
Phone: (502) 564-3296 ext. 239
Fax: (502) 564-4818 Email: Lisa.Shelley@ky.gov
Website: http://occupations.ky.gov/privateinvestigators/
Kentucky Private Investigator License Law: http://24.145.211.47/kpia/legislation.htm

Louisiana Private Investigator Licensing
LA State Board of Private Investigators Examiners
Phone (225) 763-3556
Fax(225) 763-3536
Web site: http://www.lsbpie.com
Email: lsbpie@intersurf.com

Maine Private Investigator Licensing
Department of Public Safety, Licensing and Inspection
Telephone: (207) 624-8775
Website: http://www.state.me.us/dps/

Maryland Private Investigator Licensing
Maryland State Police, PI Licensing Division
Phone: (410) 799-0191
Toll Free: (800) 525-5555
Website: http://www.mdsp.maryland.gov/mdsp/default.asp

Massachusetts Private Investigator Licensing
Massachusetts State Police, Special Licensing Unit
Phone 617-727-6128
Fax (617) 727-6021
Website: http://www.mass.gov/msp/massachu.htm
Massachusetts Private Investigator Law: http://www.mass.gov/legis/laws/mgl/147-22.htm

Michigan Private Investigator Licensing
Private Security and Investigator Unit,7150 Harris Drive, Lansing, MI 48913
Phone (517) 322-1966
Fax (517) 322-5551
Department of Consumer & Industry Services, Licensing Division for private investigators
Phone:(517) 241-5645  or  (517) 373-9808
Website: http://www.michigan.gov/cis/0,1607,7-154-10557_12992_21297---,00.html

Minnesota Private Investigator Licensing
Board of Private Detective & Protective Agent Services
Phone:  (651)793-2666 Fax:  (651)793-7065
Website: http://www.dps.state.mn.us/pdb/
Email: mn.pdb@state.mn.us
State Private Investigator Licensing Law: http://www.revisor.leg.state.mn.us/arule/7506/

Mississippi Private Investigator Licensing
No licensing requirements needed

Missouri Private Investigator Licensing
No licensing requirements needed

Montana Private Investigator Licensing
Board of Private Security Officers & Private Investigators
Phone: (406) 841-2300
Website: http://www.discoveringmontana.com/dli/bsd/license/bsd_boards/psp_board/board_page.asp

Nebraska Private Investigator Licensing
Secretary of State
Phone: (402) 471-2554.
Web Site: http://www.sos.state.ne.us/Privatedetectives/pd.htm
State Law: http://www.sos.state.ne.us/Privatedetectives/pdregs.htm

Nevada Private Investigator Licensing
Private Investigator's Licensing Board
Phone: (775) 687-3223
Website: http://ag.state.nv.us/faqs/workingaspi.htm
State Law: http://www.leg.state.nv.us/NAC/NAC-648.html

New Hampshire Private Investigator Licensing
State Police, Div of Licenses and Permits
Phone (603) 271-3575
Website: http://www.nh.gov/safety/nhsp/pluda.html

New Jersey Private Investigator Licensing
State Police, Dept of Law & Public Safety
Phone: (609) 882-2000.
Website: http://www.state.nj.us/lps/njsp/about/srb.html#pdu
Rules::http://www.state.nj.us/lps/njsp/about/pdet_rules.html

New Mexico Private Investigator Licensing
Private Investigator and Polygraph Board
Phone: (505)476-4650
Fax:  (505) 476-464
Website: http://www.rld.state.nm.us/b&c/pipolygraph/index.htm

New York Private Investigator Licensing
New York State Department of State, Division of Licensing Services
E-mail: licensing@dos.state.ny.us
Phone: (518) 474-4429
Fax: (518) 473-6648
Web Site: http://appsext5.dos.state.ny.us/lcns_public/chk_load

North Carolina Private Investigator Licensing
North Carolina Department of Justice, Private Protective Services
Phone: (919) 716-6400
Web Site: http://www.ncdoj.com/law_enforcement/cle_pps.jsp

North Dakota Private Investigator Licensing
State of North Dakota Private Investigation and Security Board
Phone (701) 222-3063
Email: ndpisb@midco.net
Website: http://www.state.nd.us/pisb
Licensing Law: http://www.state.nd.us/pisb/elig.html

Ohio Private Investigator Licensing
The Ohio Department of Commerce, Division of Professional Licensing
Phone: (614) 466-4100 or (614) 466-4130
Email: REPLD@com.state.oh.us
Website: http://www.com.state.oh.us/odoc/real/pisgmain.htm

Wisconsin Private Investigator Licening
Department of Regulation and Licensing
Phone: (608) 266-5511
Fax 608) 267-3816.
Website: http://www.drl.state.wi.us/Regulation/


This is the list of states for private investigator licensing.  If you have further questions please feel free to contact us. If you are looking for a Private Investigator Job you can also click that link and contact us.