what is collusion in academic work

There is a tariff of penalties that may be imposed when breaches of academic integrity are proven. The nature of the offence, whether the student has previously engaged with the academic integrity course and if any other offences have been proven are taken into consideration when deciding the severity of the penalty.
Breaches of academic integrity can take a number of forms, including, but not confined to plagiarism, falsification of data, submitting work written by someone else, collusion and cheating in examinations.

References:

http://www.academicwork.se/jobbsokande/international-applicants