A police report
Marietta’s 2020 BJJ Report
Marietta Police shared results from one year.
It compared staff who joined its BJJ program with staff who did not.
Results the department reported
- 48% fewer officer injuries during use-of-force events.
- 53% fewer injuries to people arrested when force was used.
- 23% less Taser use on calls.
These are the department’s 2020 figures.
They cover one police team.
How the program worked
The department shared these details on February 8, 2021.
- Humberto Borges taught the classes.
- Class time was paid work time.
- The department paid class costs.
- New hires had to attend one class each week.
- This rule ran through academy and field training.
- Other officers could sign up for classes.
- They could take up to three each week.
What the report cannot show
- Officers chose whether to join.
- The article gives no random test.
- It gives no staff count.
- It gives no event count.
- It gives no force rate by group.
- It does not compare the groups at the start.
- It gives no test of chance.
So, we cannot tell if BJJ caused these changes.
We cannot know if other teams would see them.
What this means for other teams
This report did not test classes at Sensei Sandy BJJ.
It cannot show what a local team may see.
Any pilot needs its own review.
- Check agency policy and goals.
- Check the safety plan, gear, and coach.
- Check New York rules.
Read the source
Marietta Police published the article on February 8, 2021.
It covers results from 2020.
See the source record for the reported figures, context, and study limits.
Read more. Then ask.
Review the BJJ evidence page.
Or ask about a team pilot.