Victoria Police staff and public servants have been sent on the "transformation" seminars run by Landmark Education, which was set up by a former Scientologist.
Police and Emergency Services Minister Bob Cameron has confirmed at least 37 police and public sector staff attended courses between 2001 and 2006 - at a cost of more than $16,602.
Landmark Education has previously taken legal action against newspapers, magazines, websites and television programs that have criticised it.
Its founder, Warner Erhard, is a former Scientologist. Courses promise participants romance, money, sex and intimacy and "access to power".
Course applicants must first submit to four-day entry forums, which last up to 15 hours a day.
In online forums, the group has been described as a "cult".
Past attendees have said the group had employed aggressive recruiting methods and put pressure on them to sign up other people and return for more courses.
It has taken legal action against Google and YouTube to have criticisms of its products removed. In 2006 it took action against a Queensland website owner to remove online claims about the organisation.
A spokesman for the Brumby Government could not say how many bureaucrats had been sent on the course.
Mr Cameron confirmed police and public sector staff had attended.
"Decisions on the appropriateness of staff attending courses by Landmark Education are made by individual managers who remain best-placed to assess the development needs of their staff," he said.
State Liberal MP Murray Thompson said the money should have been spent on fighting crime.
A spokeswoman for Landmark said the group was in talks with several State Government departments.
She said businesses such as Apple Computers, Reebok and Mercedes-Benz had sent staff on Landmark courses.