Students involved in a booze-fuelled initiation ceremony which brought shame on Gloucestershire University could be expelled.
An investigation was launched by the university following last month's incident, in which a student vomited over himself and the floor of a Stagecoach bus he was travelling in after a rugby club initiation ceremony.
Passengers were forced to leave the bus in Churchdown while the driver cleaned up the mess.
All rugby club fixtures and activities were withdrawn as a result, but have now been resumed.
University spokesman Paul Drake confirmed the investigation had concluded and the three culprits had been identified.
He said: "Disciplinary meetings are now taking place."
It is not yet known what punishment the students could face but options include expulsion or a fine of up to £500.
Disciplinary action can be taken if a student breaks the university's Code of Conduct, which applies both on and off campus in such a way as to bring discredit upon the university.
Penalties also include paying compensation, conducting unpaid services for the university to a maximum of 40 hours, exclusion for a fixed period or a conditional discharge which requires an individual to adhere to certain conditions laid out by the university.
Appeal proceedings can also be lodged by an individual but the final decision would lie with the chair of the University Council.
The incident came just a few weeks after it was revealed students had been involved in 'Nazi-style' initiation ceremonies where first years were forced to drink lots of alcohol and wear bags over their heads.
Despite public outrage, the number of potential students visiting the university has increased.
Last year a university open day in October attracted 1,504. The event this year saw 1,776 attend – an increase of 18 per cent.
A spokesperson said: "Our outreach work is very good with schools in and around Gloucestershire so potential students know what courses we have to offer.
"Our position in university league tables has never been higher and that also helps to put us on the map.
"In addition we offer a cash incentive of £1,000 in the first year to those students who attend a school on our 'compact scheme,' which is aimed at raising awareness of higher education.