- 1 Post By konungursvia
He did his PhD in/on criminal law.
I think "in" is correct here, but I'm not entirely convinced "on" would be wrong. What do you think?
I tend to agree, but feel "in" is used for the general area, whereas "on" is used for the specific topic.
"In" is correct. You do a degree (or similar) IN a subject. As part of his PhD he probably wrote several papers ON different topics, but he gained his degree IN criminal law.
Originally Posted by Jasmin165
But when you write a thesis, it is so in-depth and specific that it is on a narrow topic.
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