The Causes of Police Corruption and Working towards Prevention in Conflict-Stricken States

The police are the initial faces of law enforcement and commence the criminal justice process and thus hold significant responsibility for functioning law and order. As key representatives of the state, the integrity of the police in all societies is pivotal to retain public trust in the rule of law and the preservation of internal security. When police corruption is exposed or is perceived by the public to be prevalent, confidence in and communal relations with the police force become disjointed. Poor credibility of the police also negatively impacts on the legitimacy of the government. Negative public perceptions of both the police and government are particularly troublesome in violently divided societies or states undergoing armed conflict. The article focuses on the main causes and consequences of police corruption in hostile environments to introduce a range of prevention strategies to combat it and restore public confidence in policing and governance. The article suggests that a holistic anticorruption strategy, rather than a linear one, has the potential to raise awareness, increase pay to deter petty forms of corruption, install independent anticorruption agencies, and periodically rotate police officers to increase police integrity and loyalty for the host country. It is recommended that these multifaceted prevention strategies are needed within a police force that is faced with a violently divided society to reaffirm public support and deter support for armed anti-governmental oppositional groups

Anticorruption, Cultural Norms, and Implications for the APUNCAC

Corruption is a phenomenon that has received global attention from academics, policy makers and international donors. Corruption may be defined as the abuse of power for private gain. Activities include bribery, extortion, rent-seeking behaviour, cronyism, patronage, nepotism, embezzlement, graft and engagement with criminal enterprises. However, patronage, nepotism and gift giving are frequently viewed in many Asian and African cultures as acceptable practices that promote efficiency and smooth relationships. This article examines these practices in contexts including Afghanistan, Papua New Guinea, Russia, China and South Asia, discusses various rationales for these practices, and seeks to understand how these practices can be reconciled with international efforts to combat corruption. This article focuses on the implications with regard to the Anticorruption Protocol to the United Nations Convention against Corruption (APUNCAC) and the proposal to establish a body of United Nations (UN) inspectors to investigate charges of corruption and refer cases to dedicated domestic anticorruption courts. This article suggests that UN inspectors and international norms against corruption are not incompatible with traditional cultural practices. This article draws upon the experiences of Hong Kong and Singapore, where corruption was endemic, to demonstrate that local cultural norms can be rapidly changed when independent inspectors are established and receive support from institutions that are free from manipulation by domestic authorities

Method and device for determining heats of combustion of gaseous hydrocarbons

A method and device is provided for a quick, accurate and on-line determination of heats of combustion of gaseous hydrocarbons. First, the amount of oxygen in the carrier air stream is sensed by an oxygen sensing system. Second, three individual volumetric flow rates of oxygen, carrier stream air, and hydrocrabon test gas are introduced into a burner. The hydrocarbon test gas is fed into the burner at a volumetric flow rate, n, measured by a flowmeter. Third, the amount of oxygen in the resulting combustion products is sensed by an oxygen sensing system. Fourth, the volumetric flow rate of oxygen is adjusted until the amount of oxygen in the combustion product equals the amount of oxygen previously sensed in the carrier air stream. This equalizing volumetric flow rate is m and is measured by a flowmeter. The heat of combustion of the hydrocrabon test gas is then determined from the ratio m/n

Positron lifetime spectroscopy for investigation of thin polymer coatings

In the aerospace industry, applications for polymer coatings are increasing. They are now used for thermal control on aerospace structures and for protective insulating layers on optical and microelectronic components. However, the effectiveness of polymer coatings depends strongly on their microstructure and adhesion to the substrates. Currently, no technique exists to adequately monitor the quality of these coatings. We have adapted positron lifetime spectroscopy to investigate the quality of thin coatings. Results of measurements on thin (25-micron) polyurethane coatings on aluminum and steel substrates have been compared with measurements on thicker (0.2-cm) self-standing polyurethane discs. In all cases, we find positron lifetime groups centered around 560 psec, which corresponds to the presence of 0.9-A(exp 3) free-volume cells. However, the number of these free-volume cells in thin coatings is larger than in thick discs. This suggests that some of these cells may be located in the interfacial regions between the coatings and the substrates. These results and their structural implications are discussed in this report

Analysis of positron lifetime spectra in polymers

A new procedure for analyzing multicomponent positron lifetime spectra in polymers was developed. It requires initial estimates of the lifetimes and the intensities of various components, which are readily obtainable by a standard spectrum stripping process. These initial estimates, after convolution with the timing system resolution function, are then used as the inputs for a nonlinear least squares analysis to compute the estimates that conform to a global error minimization criterion. The convolution integral uses the full experimental resolution function, in contrast to the previous studies where analytical approximations of it were utilized. These concepts were incorporated into a generalized Computer Program for Analyzing Positron Lifetime Spectra (PAPLS) in polymers. Its validity was tested using several artificially generated data sets. These data sets were also analyzed using the widely used POSITRONFIT program. In almost all cases, the PAPLS program gives closer fit to the input values. The new procedure was applied to the analysis of several lifetime spectra measured in metal ion containing Epon-828 samples. The results are described

Development of a contact lens quality monitoring system

The quality of contact lens samples depends strongly on their free volume fractions. It is expected that the free volume fraction of the test samples will also impact their attenuation coefficients for soft x rays. Samples with larger free volume fractions should have lower linear attenuation coefficients. Linear attenuation coefficients for Cd-109/Ag-109 x rays have been measured in five contact lens samples. It has been shown that the difference in the linear attenuation coefficients of discs from any given sample are entirely due to the difference in their respective volume fractions. It is therefore concluded that an x ray attenuation measurement system can serve as a quality monitor for contact lens polymers

Investigation of microstructural changes in polyetherether-ketone films at cryogenic temperatures by positron lifetime spectroscopy

Microstructural changes in Polyetherether-ketone (PEEK) films were investigated in the temperature ranges of 23 to -196 C, using Positron Lifetime Spectroscopy (PLS) technique. It was determined that the total free volume decreases by about 46 percent in amorphous PEEK samples and about 36 percent in semicrystalline PEEK samples when they are cooled down from room temperature to liquid nitrogen (LN2) temperature. If this trend in reduction in free volume with decreasing temperature continues, as expected, it is surmised that PEEK will be able to withstand cooling down to liquid hydrogen (LH2) temperature without any detrimental effect on its diffusivity for liquid hydrogen