Curious why this is downvoted as while I think there are probably much larger factors, the physical size of an officer compared to their use of force is certainly something that would make logical sense to correlate somehow given how society views size and power. If we're going to do a full analysis, why not include it? It could help clarify what psychological factors (which can be affected by how people treat you, which could be affected by height) cause or prevent the use of unnecessary force.

Also sperm count because of recreational pharmaceuticals causing disruption to the the hypothalamic-pituitary-gonadal axis...