https://www.sciencedaily.com/releases/2022/07/220705090704.htm

In a study conducted in Columbus, researchers found that neighborhoods with more dogs had lower rates of homicide, robbery and, to a lesser extent, aggravated assaults compared to areas with fewer dogs, at least when residents also had high levels of trust in each other.

The results suggest that people walking their dogs puts more "eyes on the street," which can discourage crime, said Nicolo Pinchak, lead author of the study and a doctoral student in sociology at The Ohio State University.