A tutor has been told to leave a Suffolk jail after she was accused of inappropriate conduct involving a prisoner.
The woman works for a company providing Learndirect courses to inmates seeking new skills and qualifications.
A Prison Service spokesperson said: "We can confirm that an individual employed to deliver Learndirect courses was excluded from HMP Blundeston."
The spokesperson added that it followed "accusations of inappropriate conduct".
A prison officer, who asked not to be named, told the BBC: "A lot of people who work for private companies are not being given training to prepare them for the environment of a prison.
"For example there are jail-craft courses to prepare staff against manipulation by prisoners and this training should be given to everyone who comes in to prisons."
Learndirect said it would not be issuing a separate statement and directed inquiries to the Ministry of Justice.