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Surveillance issues in smart cities

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Through Smart city, Information and communications technology and Sensor

Such technology has been implemented in a number of cities, including Santa Cruz, Detroit, Barcelona, Amsterdam, and Stockholm. Smart city technology has developed practical applications in improving effective law enforcement, the optimization of transportation services, and the improvement of essential infrastructure systems, including providing local government services through e-Governance platforms.

This constant and omnipresent transmission of data from disparate sources into a single government entity has led to concerns being raised of these systems turning into 'electronic panopticons', where governments exploit data-driven technologies to maximize effective surveillance of their citizens. Such criticism is drawn from privacy factors, as the information sharing flows operate vertically between citizens and the government on a scale that undermines the concept of urban anonymity.

Law enforcement

The most discernible use of smart city technology for Government Surveillance arises in law enforcement, where critics consider the accumulation of intelligence through data collection strategies key to intelligence-based policing. The technology available in smart cities includes extensive CCTV installations (such as in London and Dubai), smart traffic sensors in New York and crime prediction software in Santa Cruz, California. This technology holds the potential to significantly improve the type and volume of information that may be relied upon by law enforcement authorities when dealing with crimes. Most policing technologies developed within smart cities appear to have shifted law enforcement from "disciplinary" to "actuarial", with less focus on identifying individual criminals to ascribe guilt and a tendency to classify and manage groups based on levels of dangerousness.

Policing Techniques

Proactive policing

Garland's culture of control theory has been used to describe the trend towards proactive policing in smart cities. In Palestine, there have been proposals to introduce GPS-based tracking systems to cars for the purposes of law enforcement within a modern urban environment. Here, the location and speed of every vehicle is recorded and transmitted to the local authority, with a fine issued if the speed of the car exceeds the limit for more than 10 seconds. The technology also holds the potential to relay information regarding accidents and traffic jams, allowing traffic to be rerouted. An extensive camera system in Amsterdam relays data regarding the traffic situation to a central control point, allowing authorities to warn motorists of incidents ahead or adverse weather conditions.

Such technology has a combined preventative and deterrent effect on motorists committing traffic violations. By controlling the speed of vehicles, authorities may minimize one of the more common risk factors in vehicular crashes. Similarly, by monitoring the location of vehicles through a mix of GPS and camera technology, authorities are able to react in real time to minimize heavy traffic incidents and therefore the likelihood of crashes. Such technology also enables police and emergency authorities to respond instantly to accidents that may occur. The extended ‘reach’ of the ‘long arm of the law’ could thus improve traffic management and efficiency, reducing energy consumption and improving civilians’ safety.

There is criticism of the use of smart city technology for proactive policing. The constant monitoring of every vehicle's location couples with the panopticon-like concept of continuous law enforcement and introduces a level of individualistic paternalism, where citizens are deemed incapable of obeying traffic laws voluntarily. More controversially, GPS tracking and camera monitoring may be inappropriately suited to other high-risk behaviour (such as drunk driving and fatigue), which are also major factors in traffic accidents. There are also implementation difficulties, as older vehicles lacking GPS equipment would not appear in data streams, severely reducing the accuracy of potential analyses. There is also the risk of arbitrariness within proactive policing. GPS-based speeding enforcement would hold an individual driving above the speed limit for 9 seconds innocent whilst exceeding the limit for 10 seconds would constitute an offence. Such arbitrary measures do not account for the differences in car performance and remove discretion from law enforcement. Extrapolating this lack of discretion across multiple areas of criminal law, with automatic enforcement being implemented as the norm, the potential for unfair outcomes and public dissatisfaction with such technology becomes evident, due to the relatively high risk of non-accountability by governments using these methods.

Predictive policing

Predictive techniques in policing are not new, as search warrants are a pre-existing example of authorities acting on the basis of suspicion and prediction in contemporary communities In the context of smart cities, predictive policing is the use of data analytics to determine potential locations of future crime. This data collection often occurs through smartphones carried around by urban populations. Through location-based services in smartphones, the movements of individuals can be tracked and scrutinized by authorities. This has the potential to be particularly effective in crowd control. By comparing the different velocities of individual smartphone users within a certain location, it is possible for law enforcement authorities to ascertain crowd density. This allows for targeted crowd management and prediction of dangers related to excessive crowding. Police are thus able to take appropriate action (such as information broadcasting) in order to reduce the threat of injuries from incidents (such as crowd stampedes), as well as crowd related crime (such as thefts) from occurring.

This type of policing also allows for law enforcement agencies to ‘predict’ where, when or by whom a crime may occur in the future and respond accordingly. Big data analytical tools are used to identify patterns in crime, allowing authorities to map high risk areas, times and days for certain types of crime. Through such software, police are also able to create profiles of potential criminals and associated behaviours. Developments in technology within smart cities allow for the scope of predictions to be increased as well as the types of responses available to law enforcement bodies.

Experiments conducted in response to a ‘predictive policing algorithm’ based on crime data in Santa Cruz, California, enabled police officers to identify the most likely time and place within a certain locality for a particular crime to be committed. This allowed for targeted patrols to be made with a 4 percent decline in burglaries and 13 additional arrests being recorded within the first 6 months. These figures are preliminary however, and do not account for unreported crime or crime that was prevented through increased police presence.

Although it is possible to envisage such law enforcement intervention as becoming the norm where smart city surveillance technologies have been adopted and implemented, predictive policing has raised a number of legal and non-legal controversies. Firstly, the level of criminal activity in a particular area sufficient to warrant extra patrols is unclear when predicting the commission of offences. The point at which the probability of crime becomes statistically significant is one which legal scholars and courts alike have had trouble defining. Within this framework, there is a degree of arbitrariness upon which the weight of the predictive data analysis must be considered, as high crime areas can only be defined with reference to “low levels of crime”.

Further, in the United States, searches and arrests must be made on grounds of reasonable suspicion under the Fourth Amendment. This means that officers must be able to “point to specific and articulable facts” that “warrant the intrusion”, or make a predictive judgment that the person is in possession of an item that related to the commission of an offence. Similar protections, though not constitutionally based, exist in Australia as well as the UK. The latter was confirmed as binding by the European Court of Human Rights on a number of European nations, which includes civil law states. The ability to formulate such “reasonable suspicion” on the basis of big data algorithms is controversial, with some critics arguing that in the absence of active police corroboration of predictive forecasts, there are insufficient grounds to warrant an arrest. Further, the general nature of predictive forecasts is arguably incompatible with the acceptable standards outlined by the United States Supreme Court with respect to specific individuals. Patterns of crime generated through data analytics are unlikely to generate the level of accurate predictive detail required for police officers to effect an arrest, when compared to informed tip offs. While in the US, courts have allowed profiling to be used in stopping and searching persons in the right context, notable judicial dissents and academic research highlight that profiling lacks probative value. In the UK, a House of Lords Report recommended that such technology be prohibited from use by local authorities, unless they were tied to the investigation of serious criminal offenses. In addition, a major factor in Europe is that predictive policing technology must be exercised in accordance with legislation that is sufficiently clear on the scope of use (foreseeability) and affords persons adequate legal protection from arbitrary uses of predictive data algorithms.

Non-legal controversies also arise over the passive discrimination that predictive policing programs can generate. In New York, a data-driven stop and frisk program was aborted after a US District Court found that the program constituted racial profiling. Roughly 83% of persons stopped under the program were persons of color. This discrimination was masked through the noise generated by mass data analysis, leading some academics to state that the number of factors within predictive policing algorithms may result in conflicting data and biased sampling. The European Court of Human Rights has also acknowledged the disproportionate targeting of search powers against persons of colour in the UK, highlighting the dangers of smart city technology in predictive policing.

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