If the warrant was valid, then they had the authority to enter the property - even if the debtor was not present, or it was someone's house.
So, a claim of trespass is unlikely to go anywhere on that front as bailiffs do not often (but it is not impossible of course) get the address wrong, as in, execute the warrant at the address stated - this is different to the scenario where the court has got the wrong address: that would still be valid for execution.
Your claim is for your return of your goods - you must make an application to court for the return of your property (so that will be everything, as it's not the debtor's) and that will prevent any sale of them.
That can be a bit of a technical process so I strongly urge you to contact:
immediately, and ask to see if someone can urgently make an application for you. It will be a general application (on form N244) for what is sometimes called an interpleader claim, or rather an application under Paragraph 60 of Schedule 12 to the Tribunals, Courts and Enforcement Act 2007. The judge will then decide the issue. Wrongful levies are also a liability of the creditor, and damage may be available in respect of that.
This usually costs £255 or whatever the application fee is now, but you may be eligible for help with fees so there are no court fees to pay: https://www.gov.uk/get-help-with-court-fees
As for the police conduct - strictly speaking, it is the duty of a constable to assist an enforcement agent with the enforcement of a warrant or writ - the Courts Act 2003 - but it is your prerogative to make a complaint re: how they went about that.
26th January 2022