Hate crime

• How long do I have to report an incident to the police?
• I think I have been a victim of a hate crime / hate incident, what can I and the police do?
• Is there a legal requirement to report a crime?
• Someone is sending me threatening / abusive / offensive messages via a social networking site. Is this a criminal offence?
• What is a hate crime or hate incident?
• What is the law on racial and religious hatred and hatred on the grounds of sexual orientation?
• What steps do the police have to take with regard to victims of crime?