Let's be honest, 99.9% of cops have zero speed.
The qualifications for running from the cops come in three areas.
Burst speed. Generally, if one can run a 30s 200m, that will drop the initial chase.
Endurace. How much distance can be put on the cop? Will you be able to keep running when backup comes? It is harder to drop a cop as question of endurance, since they have cars and bikes.
Obstacle ability. Can you get over a fence? Jump over a ditch? All these things ought to be helpful.
In this way, most runners can outrun a cop if they have a good means of escape. Geoffrey Kamworor would be excellent if he built his upper body a little more.