The difference between "delimit" and "limit"

In an article I came across the following sentence: "To delimit the responsibility of the police means to delimit human reason" I was just wondering why did the author use "delimit" instead of "limit" in this sentence?

Delimiting something is different from limiting it. To delimit is to to mark the limits or boundaries of something; to limit is to restrict, and not to allow to go beyond certain bounds. That is, delimiting entails finding out and setting forth existing limits; limiting entails enforcing bounds.

Delimit - To define a boundary for something.

Limit - Already defined boundary for something.

Take a case when you are defining some new rule, and you are going to set some boundaries/restrictions in it/to it. Then you can say it as DELIMITATION but once the rules are defined and boundaries are set, then rule is said to be in/with some LIMITS.

This is what , i know the difference between the two from best of my knowledge...

To limit looks to me something that is more likely to apply to a single axis and a single direction, i.e. to set or observe a point/measurement that you cannot our should not cross. To limit defines what is below vs what is beyond.

On the other hand, to delimit would be something that apply to a surface or a volume. To delimit defines what is inside vs what is outside.