There is no substitute for visual evidence! We have the experience and we get the results.


We have earned our reputation as a top Los Angeles private investigation firm by delivering our clients the results they want in a discreet and highly professional manner. Our primary services are Los Angeles surveillance and research, both of which rely heavily on the skilled use of advanced technology. Each year we invest in the latest technology and training, including the internal development of proprietary tools that no other private investigation firm can offer. This breadth of experience and available technology allows us to meet each client’s unique needs with a custom solution.


Years of specialization in Los Angeles has accumulated into our being able to move and surveil in ways that require years of direct experience in each area. This familiarity gives us the ability to complete our work while remaining unnoticed.



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We are experts in all types of surveillance, including domestic surveillance. Whether a case takes a day or extends to around the clock coverage for months, our experienced team of Los Angeles private investigators can ensure accurate and complete reports that can provide impervious evidence that to substantiate facts within a case.


Our ability in properly documenting our Los Angeles surveillance and research is one reason why many Los Angeles attorneys turn to us for private investigation services. The reason for this is that evidence gathered is only good if it can hold up in court. Therefore, it requires experience to document surveillance and research in order to ensure that an opposing attorney cannot find any flaw in the evidence presented.


Some of the surveillance technology we use includes unmanned cameras, unmanned motion detection cameras, radio communication technology, unmanned aerial technology, and proprietary technology that we have developed internally over the years that is used in special circumstances that require solutions that only we can provide for our clients.



We have spent years perfecting our ability to provide clients the cost saving benefits of unmanned surveillance throughout the Los Angeles area. Unmanned surveillance can easily cover an area for five to ten days for the same budget that as one day of manned surveillance by one of our Los Angeles private investigators.




O&O Investigations INC is a licensed Los Angeles private investigation firm that performs surveillance, research, and investigative services in the City of Los Angeles and throughout the state of California. We perform all investigations with professionalism and a high level of discretion. We are reliable, accountable, and affordable; most importantly, we get results.


To discuss your situation confidentially with an investigator, simply click on the “Assign a Case” button to the right and submit the form.


Contact us today. CA License #28111.




private investigator in los angeles


Official Website of Los Angeles

Website: http://www.lacity.org/index.htm

California Association of Licensed Investigators

Website: http://www.cali-pi.org/

Professional Investigators of California

Website: http://www.pica-association.org/

The State of California Official Website

Website: http://www.ca.gov/

California Department of Consumer Affiars

Website: http://www.bsis.ca.gov/

California Legislative Information

Website: http://www.leginfo.ca.gov/

California Code of Regulations

Website: http://ccr.oal.ca.gov/



The City of Los Angeles covers over 469 square miles of Southern California geography and is home to over 3,792,621 residents, making it the second most populous city in the United States. Filipe de Neve, a Spanish Governor, founded the city in 1781, but the city soon transferred over to Mexico in 1821 when Mexico won their independence from Spain. Mexico held Los Angeles for only 7 years when they transferred it to the California Republic as part of a purchase and cessation of fighting agreement called the Treaty of Guadalupe Hidalgo. Two years later, in 1850, the City of Los Angeles was formed through incorporation and less than six months later the California Republic joined the United States of America.


The racial demographic breakdown of the 3.7 million residents within the city is Whites at 49.8 percent, Asians at 11.3 percent, African Americans at 9.6 percent, and the remainder a mixture of other races. Within the overall racial statistics are the 4.6 percent that are more than one race and the 48.5 percent that identify themselves as Latino or Hispanic, even though these individuals are also counted amongst other races in the original statistics. For example, when the population of Hispanics that also identifies as White is removed from the Whites classification, the population of Whites is reduced to 28.7 percent.


Of the 3.75 million residents within Los Angeles, 3.7 million live in households, 26 thousand in some type of institution, and 58 thousand in group living situations. The household density of Los Angeles is 2,812 per square mile. Owner occupied homes account for 40.5 percent of the households and 57.3 percent of residents rent their homes.


Transportation throughout the city is facilitated by a system that has been surveyed as the most congested in the nation by the Texas Transportation Institute. The report calculated that the average resident spends over 72 hours each year in traffic. According to the Federal Highway Administration, Los Angeles has the least freeway miles per resident than any other major city in the nation, even though Los Angeles is the historical pioneer in the use of freeways worldwide. The Pasadena Freeway, originally known as the Arroyo Seca Parkway, is arguably the first modern freeway in the nation.


There are dozens of sections of freeways, highways, and state routes within the city limits, each of which have an associated name that is used in lieu of the official numbering system. This leads to confusion for non-residents and tourists, especially when portions of the same freeway have different names. For instance, State Route 91 is called the Gardena Freeway when traveling between State Route 110 and Interstate 710, the Artesia Freeway when traveling between Interstate 710 and Interstate 5, and then called the Riverside Freeway when traveling on the eastern portion between Interstate 5 and Interstate 215. Three names for a single freeway. A few of the other named freeways include Interstate 210 named the Foothill Freeway, State Route 22 named the Garden Grove Freeway, Interstate 710 named the Long Beach Freeway, and State Route 90 which is known as the Marina Freeway.


Though Los Angeles residents live in a self-described car culture, there is an extensive network of mass transit in and around the city. The Los Angeles County Metropolitan Transportation Authority operates a complex network of bus, light rail, and subway connections that facilitate the movement of over 38 million passengers each month. All but 8 million of these trips are on the bus system. Both The City of Los Angeles bus system and subway system rank second in the nation when measured by number of passengers; the light rail system ranks ninth nationwide.


Connecting light rail, buses and the subway to outlying suburbs and nearby counties is a system run by the Los Angeles County Metropolitan Transportation Authority known as Metrolink. Greyhound Bus Lines and trains by Amtrak serve ground transportation to areas outside those served by Metrolink. Other modes of transportation include air transportation out of the Los Angeles International Airport and sea transportation out of the Port of Los Angeles.


The City of Los Angeles has the following three higher education universities: the University of California, Los Angeles; the California State University, Los Angeles; and the California State University, Northridge. Supporting the residents and oftentimes serving as a stepping stone into these three major universities are nine community colleges, each of which are a part of the Los Angeles Community College District. In addition to these public institutions, there are dozens of private colleges and universities including Loyola Marymount University, Occidental College, the University of Southern California, the Fashion Institute of Design and Merchandising, and the Los Angeles Film School.


Public elementary through high school education throughout the city form the Los Angeles Unified School District (LAUSD), the second largest public school system in the nation. LAUSD has more than 694 thousand students, with 84 thousand employees of which 45 thousand are teachers. LAUSD is the second largest employer in the city and has an annual budget of $6.78 billion. From this budget, they operate more buses than most municipalities throughout the nation use to serve their entire city. LAUSD also prepares and serves over 500,000 meals to students each day.


In an effort to cater to students that can take advantage of a more intense curriculum and in order to keep these students from entering private schools, the LAUSD runs 162 magnet schools that serve 53,000 students. Competition to get into magnet school programs is strong. LAUSD only has room for 16,000 new students each year and must select these from nearly 66,000 annual applications.


The Los Angeles economy is diverse, with a balance between entertainment, tourism, technology, fashion, aerospace, and international trade. Manufacturing also plays a big role in the local economy; Los Angeles is the manufacturing leader in the western United States. A strong contribution to the economy through international trade is facilitated by the inclusion of the Port of Los Angeles within the city limits. The Port of Los Angeles is the most vital port in the Western Hemisphere.


The entire metropolitan statistical area that includes Los Angeles ranks as the third largest in the world, with a gross product of over $735 billion, a higher gross product than all but 15 countries in the world. Six of the Fortune 500 have headquarters in Los Angeles. These include Health Net, Reliance Steel and Aluminum, AECOM, Tutor Perini, and Coldwell Banker Real Estate. There are countless other worldwide brands that call Los Angeles there home base, including Herbalife, Sunkist, Pabst Brewing, KB Home, Cathay bank, Triton Media, and the California Pizza Kitchen. Thousands of businesses, both large and small, call the City of Los Angeles their home. Many of these businesses thrive by providing specialty services to clients. For example, veterinarians that only see reptiles, attorneys that specialize in niche areas of the law such as surrogacy, and private investigators that specialize in surveillance.


The story of Los Angeles starts long before this, when pre-hisotric man and dinosaurs first inhabited the area. Abundant evidence of this Los Angeles pre-history can be found at the Natural History Museum of Los Angeles County, the Page Museum at the La Brea Tar Pits, and the William S Hart Museum. The Natural History Museum of Los Angeles County manages all three museums. Pre-historic evidence of organized communities in Los Angeles date back over 8,000 years with one pre-historic female skeleton recovered in the La Brea Tar Pits that dates back over 10,000 years.


The first recorded modern-era inhabitants of the area that now forms southern coastal Los Angeles and the Channel Islands, two islands of which are in Los Angeles County, were known as the Tongva. The Tongva Native American tribe occupied an area over 4,000 square miles and date back to before AD 500. The name Tongva was an endonym with the various communities within the tribe having historical references by the names assigned to them by the Spanish, names such as Nicoleño, Fernandeño, and Gabrieleño native tribes.


The second dominant Native American tribe were known as the Chumash. The Chumash occupied the northern areas of Los Angeles up through Northern California and evidence of their ancestry dates back more than 4,000 years; descendants of the Chumash retain their ancestral identity to this day.


Both tribes had periodic contact with the Spanish for centuries, but it is thought that their demise as a dominant presence was expedited after the 1500’s when they had more contact with European disease and then hastened with their forced relocations that first started in the 18th century.


Jumping forward in time, the first notable explorations of the Los Angeles area were sponsored by Spain and led by Juan Rodriguez Cabrillo from Portugal. Cabrillo laid claim to what is now known as Southern California for Spain in 1542. It was in 1769 that Juan Crespi and Gaspar de Portola first made their way into areas of modern Los Angeles and in 1771, a Franciscan named Junipero Serra initiated the building of the first Los Angeles area mission, Mission San Gabriel Arcangel.


By 1781 a small group of less than fifty settlers established a ranch community called El Puebla de Nuestra Señora la Reina de los Angeles del Rio de Porciúncula in honor of the Virgin Mary. Within 40 years, by 1820, the town population grew to 650. This original settlement is commemorated in the Los Angeles historic district known as Los Angeles Pueblo Plaza.


When Mexico won its independence from Spain in 1821, Mexico kept control of Los Angeles and made it the capital of Alta California under the Governor Pio Pico. By 1847, the California Republic was formed with the Treaty of Cahuenga, which stopped the fighting between American settlers and the Mexican Californios.


It was not long after when in 1876 the extension of the railroads finally reached Los Angeles. This helped catapult the city to a population of over 100,000 by 1900. The population increase, in part fueled by the 1892 discovery of oil, propelled Los Angeles into an economic boom that was transformative and by 1923 California produced nearly 25 percent of the world’s oil supply.


To facilitate the rapid growth in population the city government completed several infrastructure projects. Most notable of these is the Los Angeles Aqueduct, which was completed in 1913 under the direction of William Mulholland.


Hollywood, a community within Los Angeles, and its movie industry was already making an impact on the city. By 1910, there were 10 film companies in business and making films. This was the start of the Los Angeles domination of film and by the early 1920’s more than two-thirds of the movies produced worldwide were made in Los Angeles. The employment and revenues created from the film industry were instrumental in reducing the weight of the impact the Great Depression had on the local economy. The population of Los Angeles reached one million by 1930 and eventually reached 3.7 million by 2010.


Due to its size, the City of Los Angeles government has partitioned the city into nine main districts. These districts are East Los Angeles, Northeast Los Angeles, South Los Angeles, Downtown Los Angeles, Greater Hollywood, Wilshire, Crescentia Valley, San Fernando Valley, and Westside. Some of the better known named communities within these districts include Hollywood Hills, Hancock Park, Brentwood, Westwood, Watts, Baldwin Hills, Silver Lake, Bel Air, Venice, and Koreatown. Within each of these districts there are multiple areas, businesses, buildings, and landmarks that have historical significance.


With its rich history and sheer size, the city is filled with historical sites, landmarks and points of interest. There are 223 places that appear on the National Register of Historic Places in Los Angeles, CA. This list includes historic districts that in and of themselves contain many other historic sites, buildings, and landmarks. Historic districts include Little Tokyo, Hollywood Boulevard Commercial and Entertainment District, the Broadway Theater District, the Plaza Historic District, and the Spring Street Financial District.


Eleven places on the National Registry have specific designations as National Historic Landmarks. The list includes the Eames House on Chautauqua Boulevard, the Los Angeles Memorial Coliseum on S. Figueroa, The Watts Towers of Simon Rodia on E. 107th Street, the Bradbury Building on Broadway, and the Angelus Temple on Glendale Boulevard. Two of the places on the registry are ships. The first is the S.S. Catalina, docked in Berth 96 at the Los Angeles Harbor. The S.S. Catalina’s records show that it ferried over 25 million people in its 51 years of service. The second ship is the S.S. Lane Victory, docked in Berth 46 at the Port of San Pedro. The S.S. Lane Victory now serves as a museum highlighting its service in World War II.


The S.S. Lane Victory is one of three sites on the Registry that are directly connected to Los Angeles’ contribution to military history. The second site is the Portal of the Folded Wings located at 10621 Victory Boulevard. This ornate arched structure has a domed top and is a memorial to aviation pioneers. The third is Hangar One located at 5701 W. Imperial Highway, on the property of Los Angeles International Airport (LAX). Hanger One was the first building built on Mines Field, later known as LAX, and has significance related to its rich history in the development of military and non-military aviation.

CA License #28111

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