I had a (potential) student who contacted me for a funded-PhD position in my new lab. He contacted me and sent me his CV.
On paper the student seemed to be a good student. He had published several papers, is a MS student in a university and is a lecturer in a university. Also the student is from a third-world country.
Looking at the CV I was impressed to see his publication record and associated activities. Note that I am originally from a third-world country so I know how challenging it is to conduct research in countries who lack expertise, resources etc for doing research.
I interviewed the student online, asked him questions about research, teaching and other activities. I was about to recommend him for the admission and give him funding in my group.
I had read his papers with one paper as a first author and some as middle authors. Before I recommend him for admission, I asked him for his MS thesis so that I can read what he has done on his thesis and have a better idea about what he has really done.
All of the chapter (5 out of 6) chapters of his MS thesis were plagiarized copied verbatim from various sources.
I confronted him about the plagrized content but he was adamant that he has never done it. Although the evidance suggests otherwise. I wanted to give this guy benefit of the doubt (you know like he was not informed/trained properly etc.) but I came from a similar third-world country; had a paper published in a small online community journal and knew about plagiarism. I was only an undergrad.
I do not want to give this guy a position in my group since I do not want to create problems for me or the group/department. I want to go further and block this guy from getting admitted in the department altogether. I am not sure if the second step would be harsh.
How would you deal with the situation?