The doctrine of privity of contract means that only those involved in striking a bargain would have standing to enforce it.
This doctrine literally means 'protection' and is generally translated as "sinlessness".
The German's doctrine of "defense in depth" meant that there was always another set of trenches waiting for them to fall back to.
Academics over the years have come up with various formulations and ideas of what the doctrine should mean.
In the US, the first-sale doctrine means that if you own an object, you have the right to sell it.
However, the emerging doctrine of self-determination in colonial situations meant that most nations regarded Rhodesia as illegitimate.
And the modern doctrine of commercial despotism means that we shall not find it at all.
Think what such a doctrine might have meant to the creation of Israel.
To most people, doctrine means little; and most early modern investigations showed ignorance or indifference, even among people prepared to fight for their faith.
This doctrine means that a person cannot question the validity of a piece of legislation through the courts.