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Private Detectives

A Private Detective (also known as a Private Investigator or PI) is an individual who conducts investigations and collects information, most of the time on behalf of private citizens or corporations not affiliated with the police or any branch of government. Some private detectives prefer to be called Professional investigators or Licensed Private Investigators (LPIs). Private detectives sometimes solve mysteries by collecting and piecing together small clues. More typically, they are involved in uncovering facts about legal, financial, or personal matters; providing assistance in criminal and civil liability cases; investigating insurance claims and fraud; or conducting individual background profiles.

There is a wide variety of specialization and concentration within this profession. Some detectives specialize in computer crimes, such as identity theft, harassing e-mails, and illegal downloading of copyrighted material. Others focus on the preparation of criminal defenses, work for corporations that need to conduct internal or external investigations, support large financial transactions, or investigate insurance claims and fraud. Detectives are often involved in providing assistance in criminal and civil liability cases, child custody and protection cases, missing persons cases, and investigation of individuals for any number of reasons.

Private detectives and investigators often enter the profession with prior experience in other occupations under their belts. Many begin second careers as private detectives after retiring from law enforcement, the military, or government investigative or intelligence jobs. Some others leverage their previous experience at jobs in the finance, accounting, insurance, commercial credit, investigative reporting, and law sectors.


Private detectives carry out their responsibilities in a variety of ways. A great deal of their work is done using a computer: conducting database searches, uncovering personal information (e.g., prior arrests, telephone numbers, motor vehicle registrations, association memberships) or recovering deleted files. Even more involves making phone calls, interviewing people, visiting neighborhoods or worksites, or in some cases taking on a fake identity in order to gather information or observe a subject inconspicuously. Most detectives are trained in the art of physical surveillance, which involves remote observation of an individual or a site using cameras, binoculars, and cell phones from an inconspicuous location. In any of these scenarios, the private detective must always be fully cognizant of the law and work within its boundaries. He/she must also know how to collect evidence in a manner which will not compromise its future admissibility in court.

Actual duties of private detectives depend on the needs of their client. The profession encompasses a wide variety of clientele categories and a number of specializations. Some of the more common specialties include the following:

  • Financial investigators: These individuals are employed by investment bankers and other accountants to support large financial transactions. Many of them are also certified public accountants (CPAs). Duties include things like developing confidential financial profiles of prospective parties to the transaction, or conducting searches for assets in anticipation of claiming damages awarded by a court.
  • Legal investigators: These detectives work for law firms assisting in the preparation of criminal defenses. Duties may include locating witnesses, conducting interviews, taking photographs, serving legal documents, assembling evidence, and testifying in court.
  • Corporate investigators: These investigators work for corporations that need to conduct either internal or external investigations. Internal investigations would address suspected crimes such as employee theft, fraud, or drug use in the workplace. External investigations focus on criminal activity occurring outside the workplace; for example, fraudulent billing by a supplier.
  • Computer forensic investigators: These detectives specialize in the analysis and presentation of data retrieved or recovered from computers and later used in investigations or as evidence. Some of the types of tasks they undertake include the recovery of previously deleted e-mails or passwords, retrieval of data from encrypted files, and investigation of intrusions into computer systems.
  • Hotel or store detectives: These investigators are responsible for loss control and asset protection. Those who work for retail stores are charged with safeguarding the assets of their employers by apprehending anyone attempting to steal merchandise or destroy store property. They also conduct periodic inspections of certain areas of the store such as storage locations, dressing rooms, and restrooms. They often assist in opening and closing the store, prepare security reports for management, and testify in court when called upon. Hotel detectives protect guests from theft of their belongings and keep order in the establishment's restaurants and bars. They are also sometimes called upon to keep undesirable individuals, such as known thieves, off the premises.

Other responsibilities that often fall into the lap of private detectives include the following:

  • process serving (the personal delivery of summons, subpoenas and other legal documents);
  • tracing down those who owe money;
  • locating and investigating unwanted forms of electronic surveillance (for example, a bugged boardroom);
  • warning troublemakers who cause problems on a client's premises;
  • monitoring properties to enforce conformance to rules and to protect individuals or property;
  • conducting background investigations of individuals;
  • interfacing with security departments, police, and/or postal officials.

Job Characteristics

Work hours for private detectives are variable but often irregular; early morning, evening, weekend, and holiday work is common. Many of them spend a great deal of time away from office-type environments conducting interviews or doing surveillance, although some tend to spend more time working in their office doing computer searches and/or making phone calls. Some of the work in this profession can be stressful and dangerous. Although there are situations which call for detectives to be armed, most of the time a weapon will not be necessary because most of the work focuses on information gathering as opposed to law enforcement or criminal apprehension.

Not everyone has the personality traits required to be a good private detective. Those who are successful in the profession are confident, persistent, assertive, and do not fear confrontation. Ingenuity and the ability to think on one's feet are also very important. Good reasoning ability is a valuable asset and a working knowledge of relevant laws is crucial. Business and marketing skills are also important to those who aspire to establish their own investigation agency. Communication is a highly significant aspect of the job and an ability to communicate well is vital. Private detectives are often called upon to interview, interrogate, and be able to present testimony in court in a manner that a jury will believe. Communication in the form of writing skills is no less important. Most detective work involves frequent professional-quality report-writing.

Employment Outlook

According to the U.S. Department of Labor Bureau of Labor Statistics (USDL BLS), private detective and investigator jobs are projected to grow at a faster than the average rate as compared to other occupations. An increasing emphasis on security combined with a trend towards increasing litigation will fuel this job growth. The proliferation of "electronic" crime (e.g., e-mail harassment, identity theft, spamming, etc.) and the increasing demand for employee background checks by businesses will further contribute to future PI employment. A mitigating factor for those seeking employment in this field is a high expectation of competition for jobs. Private detective careers tend to attract large numbers of qualified job applicants, including relatively young retirees from military and law enforcement careers.

Computer forensic investigators are expected to enjoy particularly good opportunities for future employment. Another excellent specialization for job-seekers will be entry-level positions in detective agencies or stores. This will be especially true in large chain and discount stores that hire detectives on a part-time basis.

Education, Certification, and Licensing

Although there are no formal educational requirements for most private detective jobs, a candidate needs to realize that a large number of his/her competitors for jobs in this field already have a military or law enforcement background. Most others hold college degrees. For this reason, it is important to achieve some level of formal education and training. An associate or bachelor's degree in business, criminal justice, or police science is a valuable asset for entry into this profession. For those who wish to specialize in computer forensics work, a computer science or accounting degree is even more helpful than a criminal justice degree. Those wishing to become corporate investigators will need at least a bachelor's degree, preferably in a business-related field. Many corporate investigators either hold a master's degree or are already CPAs. There are presently many schools and academies, including distance learning schools, which offer private investigation training.

The majority of states (over 40 of them) require private detectives and investigators to be licensed. In the few states where there is currently no state licensing law, local jurisdictions (counties or cities) sometimes require a license. Also, any detective who conducts business in more than one state should strongly consider acquiring a license in all states in which business may be conducted. Licensing requirements vary by state. Information on local licensing requirements can be obtained from the individual state's Department of Public Safety, Division of Licensing, or police headquarters. A detailed list of licensing requirements by state can also be found here.

Some detectives enhance their credentials by obtaining certification from a professional organization. The National Association of Legal Investigators confers the Certified Legal Investigator designation to licensed investigators who devote a majority of their practice to negligence or criminal defense investigations. In order to earn this certification, detectives must meet certain requirements relating to experience, education, and continuing-training. They must also pass written and oral examinations. ASIS, a trade organization for the security industry, offers the Professional Certified Investigator certification. In order to qualify, applicants must have a high school diploma or equivalent with five years of investigations experience. There is also an exam which must be passed to earn this credential.


Major Employers

About one of every three private detectives is self-employed, working either full-time or part-time. Another one of three works in a private detective agency or some other type of investigation and security service. Other employers of PIs include department stores, government agencies, legal services firms, insurance agencies, banks and other credit establishments, and employment services companies.

Schools for Private Detectives And Investigators are listed in the column to the left.

Metro Areas Sorted by Total Employment for:
Private Detectives and Investigators

Listed below are metro areas sorted by the total number of people employed in Private Detectives and Investigators jobs , as of 2015

Source: 2015 Occupational Employment Statistics and 2014-24 Employment Projections, Bureau of Labor Statistics, BLS.gov.

Metro Area (Alabama) Total Employment Annual Median Salary
Hoover 50 $65,720
Birmingham 50 $65,720
Metro Area (Arizona) Total Employment Annual Median Salary
Scottsdale 150 $42,330
Mesa 150 $42,330
Phoenix 150 $42,330
Metro Area (California) Total Employment Annual Median Salary
Oakland 320 $48,960
Hayward 320 $48,960
San Francisco 320 $48,960
Arden 130 $19,480
Arcade 130 $19,480
Roseville 130 $19,480
Sacramento 130 $19,480
Riverside 110 $47,500
Ontario 110 $47,500
San Bernardino 110 $47,500
Fresno 80 $65,780
Bakersfield 50 $77,850
San Diego N/A $45,580
Carlsbad N/A $45,580
Fairfield N/A $58,410
Vallejo N/A $58,410
Sunnyvale N/A $70,650
San Jose N/A $70,650
Santa Clara N/A $70,650
Metro Area (Colorado) Total Employment Annual Median Salary
Fort Collins 170 $42,890
Lakewood N/A $43,780
Denver N/A $43,780
Aurora N/A $43,780
Metro Area (Connecticut) Total Employment Annual Median Salary
Hartford 110 $65,290
East Hartford 110 $65,290
West Hartford 110 $65,290
Stamford 40 $58,040
Bridgeport 40 $58,040
Norwalk 40 $58,040
New Haven N/A $49,780
Metro Area (Florida) Total Employment Annual Median Salary
Miami 1050 $44,230
West Palm Beach 1050 $44,230
Fort Lauderdale 1050 $44,230
Sanford 250 $38,640
Kissimmee 250 $38,640
Orlando 250 $38,640
Jacksonville 220 $37,240
Tallahassee 100 $37,050
Fort Myers 60 $34,840
Cape Coral 60 $34,840
Titusville 50 $33,430
Palm Bay 50 $33,430
Melbourne 50 $33,430
Gainesville 30 $36,590
Ocala N/A $40,940
Port St. Lucie N/A $42,510
Clearwater N/A $52,570
Tampa N/A $52,570
St. Petersburg N/A $52,570
Metro Area (Georgia) Total Employment Annual Median Salary
Roswell N/A $36,860
Sandy Springs N/A $36,860
Atlanta N/A $36,860
Metro Area (Hawaii) Total Employment Annual Median Salary
Urban Honolulu 70 $53,040
Metro Area (Idaho) Total Employment Annual Median Salary
Boise City N/A $47,080
Metro Area (Illinois) Total Employment Annual Median Salary
Springfield N/A $45,980
Metro Area (Indiana) Total Employment Annual Median Salary
Anderson N/A $27,230
Carmel N/A $27,230
Indianapolis N/A $27,230
Metro Area (Iowa) Total Employment Annual Median Salary
West Des Moines 30 $38,510
Des Moines 30 $38,510
Metro Area (Louisiana) Total Employment Annual Median Salary
Baton Rouge 70 $32,640
Lafayette 60 $31,050
New Orleans N/A $36,360
Metairie N/A $36,360
Lake Charles N/A $45,770
Metro Area (Maryland) Total Employment Annual Median Salary
Towson 500 $48,330
Columbia 500 $48,330
Baltimore 500 $48,330
Metro Area (Michigan) Total Employment Annual Median Salary
Dearborn 130 $44,680
Warren 130 $44,680
Detroit 130 $44,680
Wyoming 50 $32,120
Grand Rapids 50 $32,120
Metro Area (Mississippi) Total Employment Annual Median Salary
Pascagoula 100 $50,900
Biloxi 100 $50,900
Gulfport 100 $50,900
Jackson N/A $34,300
Metro Area (Nevada) Total Employment Annual Median Salary
Paradise 170 $43,980
Henderson 170 $43,980
Las Vegas 170 $43,980
Metro Area (New Hampshire) Total Employment Annual Median Salary
Manchester 30 $35,540
Metro Area (New Jersey) Total Employment Annual Median Salary
Atlantic City N/A $43,000
Hammonton N/A $43,000
Trenton N/A $67,140
Metro Area (New Mexico) Total Employment Annual Median Salary
Albuquerque 100 $27,310
Metro Area (New York) Total Employment Annual Median Salary
Binghamton 120 $57,930
Rochester 60 $33,690
Syracuse 60 $53,470
Albany N/A $46,030
Troy N/A $46,030
Schenectady N/A $46,030
Cheektowaga N/A $53,620
Buffalo N/A $53,620
Niagara Falls N/A $53,620
Metro Area (North Carolina) Total Employment Annual Median Salary
Asheville N/A $34,790
Salem N/A $35,010
Winston N/A $35,010
Metro Area (Ohio) Total Employment Annual Median Salary
Cleveland 420 $35,960
Elyria 420 $35,960
Columbus 210 $37,510
Dayton 80 $50,100
Metro Area (Oklahoma) Total Employment Annual Median Salary
Tulsa 120 $20,070
Oklahoma City N/A $55,160
Metro Area (Pennsylvania) Total Employment Annual Median Salary
Pittsburgh 430 $39,040
Carlisle 180 $36,640
Harrisburg 180 $36,640
Reading 30 $41,700
Metro Area (Puerto Rico) Total Employment Annual Median Salary
Caguas 70 $28,700
Carolina 70 $28,700
San Juan 70 $28,700
Metro Area (Tennessee) Total Employment Annual Median Salary
Knoxville 260 $58,100
Franklin 50 $63,300
Murfreesboro 50 $63,300
Nashville 50 $63,300
Davidson 50 $63,300
Jackson N/A $27,280
Metro Area (Texas) Total Employment Annual Median Salary
Arlington 1300 $44,920
Fort Worth 1300 $44,920
Dallas 1300 $44,920
Mission N/A $29,960
McAllen N/A $29,960
Edinburg N/A $29,960
Amarillo N/A $38,320
The Woodlands N/A $49,040
Houston N/A $49,040
Sugar Land N/A $49,040
El Paso N/A $56,320
Austin N/A $58,590
Round Rock N/A $58,590
Midland N/A $67,310
Metro Area (Utah) Total Employment Annual Median Salary
Orem N/A $44,780
Provo N/A $44,780
Metro Area (Virginia) Total Employment Annual Median Salary
Richmond 80 $54,650
Metro Area (Washington) Total Employment Annual Median Salary
Seattle 220 $48,300
Bellevue 220 $48,300
Tacoma 220 $48,300
Spokane Valley N/A $112,820
Spokane N/A $112,820
Metro Area (Wisconsin) Total Employment Annual Median Salary
West Allis 100 $37,250
Waukesha 100 $37,250
Milwaukee 100 $37,250

Most Popular Industries for :
Private Detectives and Investigators

Industries representing at least 1% of total jobs for the occupation.

Source: 2015 Occupational Employment Statistics and 2014-24 Employment Projections, Bureau of Labor Statistics, BLS.gov.

Industry Jobs Percent Annual Median Salary
Office Services And Staffing 19,730 56% $38,700
Government 4,960 14% $52,330
Banking And Credit 2,400 6% $48,060
Professional And Technical Services 2,280 6% $50,950
Insurance 1,290 3% $43,770
Business Management 1,240 3% $50,110
Department And General Stores 1,130 3% $28,890
Telecommunications 350 1% $53,580
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We have some additional detailed pages at the state level for Private Detectives and Investigators.

Numbers in parentheses are counts of relevant campus-based schools in the state; online schools may also be available.

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