POLICE TESTS: Numerical Ability and Verbal Ability tests for the Police Officer Assessment centre 2015 Version is a comprehensive manual which contains a large number of tests suitable for UK police selection. During the real test you will be required to answer questions based on Addition, Subtraction, Multiplication, Averages, Percentages, Ratios and Interpretation of numbers presented in graphs. This manual will provide you with lots of sample test questions to help you prepare fully and achieve high scores.