How soon after the interview did you know you were successful?

Very dependant on the size of the recruitment campaign. If you didn't ask at interview you can contact the Job Vacancy Holder. In the past its taken between 1 and 4 weeks as I said dependant on the size of the campaign.

Thank you, are they quick to reject people as well? Or are you waiting the same amount of time to be rejected?

Same amount of time as the interview team has to meet to evaluate the candidates and then offers go out etc.

And the Civil service Jobs site is then updated accordingly.

Hi, unfortunately, there is no timescales for finding out the outcome of an interview. I have known cases where applicants have waited months to hear anything and others where the decision has been made in weeks. My advice is to be patient, if you have been invited for an interview your already a lot further than others who didn't get as far in the process.