Just search "defamation" online and do some research - there is a mass of info which only you can assess against your own particular circumstances.
There are two different types of civil claims for defamation:
- libel - which relates to the publication of a statement in permanent form, such as in writing, but also includes broadcasts or stage productions;
- slander - which relates to the transient publication of a statement, such as by way of speech, but also includes gestures or conduct.
What does a claimant need to show?
A claimant needs to show that the statement complained of:
- is defamatory, meaning that an ordinary person would think worse of the claimant as a result of the statement;
- identifies or refers to them, and
- is published to a third party.
As defamation is a tort of strict liability, there is no need for the claimant to establish that the defendant had an intention to defame.
Since the introduction of the 2013 Defamation Act, (DA 2013), which came into force on 1 January 2014, claimants must now also demonstrate that the publication of the statement caused, or is likely to cause, serious harm to their reputation. In the case of bodies trading for profit, the serious harm to its reputation needs to have caused, or be likely to cause, serious financial loss.
This is a good starting point: https://www.justice.gov.uk/courts/procedure-rules/civil/protocol/prot_def
You will probably need to put some cash into it if you decide to go past the pre-action 'letter of claim' stage but if you read the protocol, it will give you a good sense of what is required and provide you the framework to make your decision if you believe your claim has legs and that you wish to proceed.