Question: What is the busiest airport in the country the concept of intelligence-led policing was developed?

full_context: Document 1: Spain: There are 47 public airports in Spain. The busiest one is the airport of Madrid (Barajas), with 50 million passengers in 2011, being the world's 15th busiest airport, as well as the European Union's fourth busiest. The airport of Barcelona (El Prat) is also important, with 35 million passengers in 2011, being the world's 31st-busiest airport. Other main airports are located in Majorca (23 million passengers), Málaga (13 million passengers), Las Palmas (Gran Canaria) (11 million passengers), Alicante (10 million passengers) and smaller, with the number of passengers between 4 and 10 million, for example Tenerife (two airports), Valencia, Seville, Bilbao, Ibiza, Lanzarote, Fuerteventura. Also, more than 30 airports with the number of passengers below 4 million.
Document 2: Federal Bureau of Investigation: On July 8, 2007 The Washington Post published excerpts from UCLA Professor Amy Zegart's book Spying Blind: The CIA, the FBI, and the Origins of 9/11. The Post reported from Zegart's book that government documents show the CIA and FBI missed 23 potential chances to disrupt the terrorist attacks of September 11, 2001. The primary reasons for the failures included: agency cultures resistant to change and new ideas; inappropriate incentives for promotion; and a lack of cooperation between the FBI, CIA and the rest of the United States Intelligence Community. The book blamed the FBI's decentralized structure, which prevented effective communication and cooperation among different FBI offices. The book suggested that the FBI has not evolved into an effective counter-terrorism or counter-intelligence agency, due in large part to deeply ingrained agency cultural resistance to change. For example, FBI personnel practices continue to treat all staff other than special agents as support staff, classifying intelligence analysts alongside the FBI's auto mechanics and janitors.
Document 3: Intelligence-led policing: Early development of intelligence - led policing took place in the UK. It was perceived that police were spending too much time responding to specific incidents, and not tackling the problem of repeat offenders. Therefore, reports by the Audit Commission in 1993 and Her Majesty's Inspectorate of Constabulary in 1997 advocated increased use of intelligence, surveillance and informants to target recidivist offenders, so that police could be more effective in fighting crime. The call was quickly taken up by some police forces, particularly the Kent Constabulary. Intelligence led policing was not a major proponent of policing styles until the September 11th terrorist attacks. Prior to these attacks the majority of all branches of the government would often not divulge any information to each other. The main assumptions of this theory can be described by Ratcliffe's 3i format. As shown by the figure below, the three I's call for close cooperation between police chiefs and intelligence analysts in order to facilitate a strategy that will impact the criminal environment.
Document 4: Airport: Many large airports are located near railway trunk routes for seamless connection of multimodal transport, for instance Frankfurt Airport, Amsterdam Airport Schiphol, London Heathrow Airport, London Gatwick Airport and London Stansted Airport. It is also common to connect an airport and a city with rapid transit, light rail lines or other non-road public transport systems. Some examples of this would include the AirTrain JFK at John F. Kennedy International Airport in New York, Link Light Rail that runs from the heart of downtown Seattle to Seattle–Tacoma International Airport, and the Silver Line T at Boston's Logan International Airport by the Massachusetts Bay Transportation Authority (MBTA). Such a connection lowers risk of missed flights due to traffic congestion. Large airports usually have access also through controlled-access highways ('freeways' or 'motorways') from which motor vehicles enter either the departure loop or the arrival loop.
Document 5: Paris: Paris is a major international air transport hub with the 4th busiest airport system in the world. The city is served by three commercial international airports: Paris-Charles de Gaulle, Paris-Orly and Beauvais-Tillé. Together these three airports recorded traffic of 96.5 million passengers in 2014. There is also one general aviation airport, Paris-Le Bourget, historically the oldest Parisian airport and closest to the city centre, which is now used only for private business flights and air shows.
Document 6: Federal Bureau of Investigation: From the end of the 1980s to the early 1990s, the FBI reassigned more than 300 agents from foreign counter-intelligence duties to violent crime, and made violent crime the sixth national priority. With reduced cuts to other well-established departments, and because terrorism was no longer considered a threat after the end of the Cold War, the FBI assisted local and state police forces in tracking fugitives who had crossed state lines, which is a federal offense. The FBI Laboratory helped develop DNA testing, continuing its pioneering role in identification that began with its fingerprinting system in 1924.
Document 7: Police: Studies of this kind outside of Europe are even rarer, so it is difficult to make generalizations, but one small-scale study that compared transnational police information and intelligence sharing practices at specific cross-border locations in North America and Europe confirmed that low visibility of police information and intelligence sharing was a common feature (Alain, 2001). Intelligence-led policing is now common practice in most advanced countries (Ratcliffe, 2007) and it is likely that police intelligence sharing and information exchange has a common morphology around the world (Ratcliffe, 2007). James Sheptycki has analyzed the effects of the new information technologies on the organization of policing-intelligence and suggests that a number of 'organizational pathologies' have arisen that make the functioning of security-intelligence processes in transnational policing deeply problematic. He argues that transnational police information circuits help to "compose the panic scenes of the security-control society". The paradoxical effect is that, the harder policing agencies work to produce security, the greater are feelings of insecurity.
Document 8: Police: Colquhoun's utilitarian approach to the problem – using a cost-benefit argument to obtain support from businesses standing to benefit – allowed him to achieve what Henry and John Fielding failed for their Bow Street detectives. Unlike the stipendiary system at Bow Street, the river police were full-time, salaried officers prohibited from taking private fees. His other contribution was the concept of preventive policing; his police were to act as a highly visible deterrent to crime by their permanent presence on the Thames. Colquhoun's innovations were a critical development leading up to Robert Peel's "new" police three decades later.
Document 9: Airport: Most of the world's airports are owned by local, regional, or national government bodies who then lease the airport to private corporations who oversee the airport's operation. For example, in the United Kingdom the state-owned British Airports Authority originally operated eight of the nation's major commercial airports - it was subsequently privatized in the late 1980s, and following its takeover by the Spanish Ferrovial consortium in 2006, has been further divested and downsized to operating just five. Germany's Frankfurt Airport is managed by the quasi-private firm Fraport. While in India GMR Group operates, through joint ventures, Indira Gandhi International Airport and Rajiv Gandhi International Airport. Bengaluru International Airport and Chhatrapati Shivaji International Airport are controlled by GVK Group. The rest of India's airports are managed by the Airports Authority of India.
Document 10: Southern California: Southern California is home to Los Angeles International Airport, the second-busiest airport in the United States by passenger volume (see World's busiest airports by passenger traffic) and the third by international passenger volume (see Busiest airports in the United States by international passenger traffic); San Diego International Airport the busiest single runway airport in the world; Van Nuys Airport, the world's busiest general aviation airport; major commercial airports at Orange County, Bakersfield, Ontario, Burbank and Long Beach; and numerous smaller commercial and general aviation airports.
Document 11: List of busiest airports in the United Kingdom: The United Kingdom, an island country, is home to many of Europe's largest and busiest airports. London - Heathrow, which handles over 75 million international passengers annually, is the largest airport in the UK. London serves as the largest aviation hub in the world by passenger traffic, with six international airports, handling over 163 million passengers in 2016, more than any other city. London's second - busiest airport, London - Gatwick, was until 2016 the world's busiest single - runway airport. Manchester Airport is the United Kingdom's third - busiest airport. London - Stansted and London - Luton are the fourth - and fifth - busiest airports, respectively.
Document 12: London: London is a major international air transport hub with the busiest city airspace in the world. Eight airports use the word London in their name, but most traffic passes through six of these. London Heathrow Airport, in Hillingdon, West London, is the busiest airport in the world for international traffic, and is the major hub of the nation's flag carrier, British Airways. In March 2008 its fifth terminal was opened. There were plans for a third runway and a sixth terminal; however, these were cancelled by the Coalition Government on 12 May 2010.
Document 13: Police: Historical studies reveal that policing agents have undertaken a variety of cross-border police missions for many years (Deflem, 2002). For example, in the 19th century a number of European policing agencies undertook cross-border surveillance because of concerns about anarchist agitators and other political radicals. A notable example of this was the occasional surveillance by Prussian police of Karl Marx during the years he remained resident in London. The interests of public police agencies in cross-border co-operation in the control of political radicalism and ordinary law crime were primarily initiated in Europe, which eventually led to the establishment of Interpol before the Second World War. There are also many interesting examples of cross-border policing under private auspices and by municipal police forces that date back to the 19th century (Nadelmann, 1993). It has been established that modern policing has transgressed national boundaries from time to time almost from its inception. It is also generally agreed that in the post–Cold War era this type of practice became more significant and frequent (Sheptycki, 2000).
Document 14: Police: The terms international policing, transnational policing, and/or global policing began to be used from the early 1990s onwards to describe forms of policing that transcended the boundaries of the sovereign nation-state (Nadelmann, 1993), (Sheptycki, 1995). These terms refer in variable ways to practices and forms for policing that, in some sense, transcend national borders. This includes a variety of practices, but international police cooperation, criminal intelligence exchange between police agencies working in different nation-states, and police development-aid to weak, failed or failing states are the three types that have received the most scholarly attention.
Document 15: Police: In 1797, Patrick Colquhoun was able to persuade the West Indies merchants who operated at the Pool of London on the River Thames, to establish a police force at the docks to prevent rampant theft that was causing annual estimated losses of £500,000 worth of cargo. The idea of a police, as it then existed in France, was considered as a potentially undesirable foreign import. In building the case for the police in the face of England's firm anti-police sentiment, Colquhoun framed the political rationale on economic indicators to show that a police dedicated to crime prevention was "perfectly congenial to the principle of the British constitution." Moreover, he went so far as to praise the French system, which had reached "the greatest degree of perfection" in his estimation.
ground_truth: London - Heathrow
sub_queries: the concept of intelligence-led policing (ilp) is a concept was developed in what country Answer: the UK
which is the busiest airport in the the UK Answer: London - Heathrow