The information needed will vary based on what is being reported. The following is a list of questions that could be asked when you call for police service. Not all questions would be applicable to every call. The dispatcher will want to know:
What is occurring or has occurred?
The location of occurrence
Your name and phone number (anonymous calls are accepted)
Your location, if different from location of occurrence
The time of occurrence
Are there any injuries?
Is anyone intoxicated?
Are there weapons involved?
How many people are involved?
What is the description of the people involved? (gender, race, hair color, eye color, height, weight, scars/tattoos, clothing)
What is the description of the vehicles involved? (license plate, color, make, model, year)
What was the direction of travel for any persons or vehicle leaving the scene?
Are there any witnesses? Are they still at the scene?
Are there any animals at the house? Inside or outside?