Citizens trust in the police is important because it allows the police to maintain law and order, which is of great importance for the function of any society. Previous studies have found a correlation between quality of government and citizens level of trust in police. The aim of this study is to explore the importance of quality of government as an explanatory factor for trust in police and to compare it to other explanatory factors that have been shown to be of importance such as social trust, economic inequality and GDP per capita. It also compares individual factors in countries with low- as well as high levels of quality of government. This cross-country study uses publicly available data from both ESS round 9 and data from the Quality of government institute. The main findings show that social trust has a higher explanatory value than quality of government and the correlations between individual factors differ slightly in countries with high- and low quality of government.