• Crime and society. • Defining crime. • History of crime. • Theories of crime. • Classification of crime. • Impact of crime. • Delinquency and society. • Delinquency defined. • Causes of delinquency. • Theories of delinquency. • Type of delinquency. • Impact of delinquency. • Measurements and patterns of crime and delinquency. • Measurement of crime and delinquency. • Measuring crime and delinquency. • Victims report method. • Police report/administrative data method. • Self-report method. • Improving crime measurement in the Nigerian state. • Patterns and trends of crime in Nigeria. • Patterns of property crime in Nigeria. • Patterns of person crime in Nigeria. • Patterns of fiscal crime in Nigeria. • Patterns of terroristic crime in Nigeria. • Patterns of trafficking crime in Nigeria. • Patterns and trends of delinquency in Nigeria. • Patterns of government political crime in Nigeria. • Patterns of physical body crime in Nigeria. • Patterns of school oriented delinquency in Nigeria. • Patterns of crime oriented delinquency in Nigeria. • Patterns of antisocial delinquency in Nigeria.