# Data source and sample

The project uses the **Community Safety Indicators Open Data** file published on
the Toronto Police Service Public Safety Data Portal:

<https://data.tps.ca/datasets/TorontoPS::community-safety-indicators-open-data/about>

The full dataset is not redistributed with this submission. The script used a
fixed random seed to select the 5,000 rows in `data/sample_csi_data.csv`, with
sampling stratified by report year and CSI category. This smaller file lets the
marker run the submitted code without downloading the 156 MB source CSV.

The sample keeps the approximate coordinates published in the open dataset. It
does not contain names, contact details, narrative fields, or personal files
from any other source.
