Contemporary crime is a complex topic covering everything from hate crime, industrial espionage, and murder to drug trafficking, international terrorism, and domestic violence. A crime is any action that has been deemed illegal and is punishable by law. Specific laws have been put in place by towns and cities, states, and countries to dissuade people from committing criminal acts. Although crime is easily recognizable, the finer points of law can be more complicated to understand. The law varies among municipalities and states; so it is important to understand the nuts and bolts of the system. Law enforcement and non-line employees, such as forensic scientists, judges, and lawyers, work every day to follow procedure and ensure that the right perpetrators are brought to justice.