In NSW, there are four (4) ways for a person to report a crime:

1.  In a life threatening or time critical emergency, call Triple Zero (000).
2. For non-urgent crime, phone the Police Assistance Line on 131 444 who will take a police report and if necessary, arrange for police to attend. 
3. Should you wish to remain anonymous when reporting a crime, call Crime Stoppers on 1800 333 000. It's a free call and rewards of up to $1,000 are offered for information that leads to an arrest.
4. You can visit your local Police Station to report a crime.