yeah open a disposable email address (gmail or somewhere) and then delete it when you have finished
if the DoSS has upset you over reports or allegations
then you may apply for a correction
but it has to be factual and
they may well say that it was their opinion at the time
complaints to the police would almost certainly be actionable
( he hit me etc ) and they are by and large immune from suit
http://www.brettwilson.co.uk/blog/criminal-complaints-to-the-police-can-i-sue-for-defamation/
and I THINK you may well be advised that other peoples complaints to the DoSS are as well.
A dissatisfied tenant of mine that I got a CCJ against, complained to the police that I was a child molester ( er I;m not )
and it was obvious that I would have to bask in the glory of being allowed to disprove the allegations and there was nothing else I could do about it.