Tenant removing my bathroom to sell?

Your labour MP needs to see this.

It is a failure of the state to administer justice.

If this was a Landlord behaving this badly it would be all over the BBC and other news.
Where is the justice?

It’s a civil matter – any policeman will tell you that.
Had a kitchen unit and the sink ‘stolen’ on one and a boiler and rads on another.
If you do not have any forwarding address, they were in rent arrears or a tendency to threats/ violence then walk away from it.
Not worth your mental health even thinking about it.

They have vacated?

Get legal advice from an experienced lawyer (118?) as to may you re-enter and change the locks? What is left that is not yours?
Whether you relet possibly to your previous tenant’s cousin or sell with vacant possession is up to you?
I’m sure you are not alone in this crazy world.

Personally speaking, I would use health and safety concerns to justify unannounced entry to inspect the damage, take photographs and then change the locks.
Let them pursue you if they dare as you have evidence of them not living there plus the “sale advert” of your possessions.
Not a bad idea to send dear old Angela Raynor a note of your experience and cc Starmer.
We have Angela’s equivalent here in Scotland Patrick Harvie.

Probably a unpopular view here

They are not behaving in a legal or in a way that I find acceptable.

Firstly keep the post and print it out.

Secondly when does the S21 come into effect?

If they are not living there, I would consider all my options, including if they are not there, taking legal possession.

Years ago, I had a similar problem, the Police stated, if they have moved out, surrendering the keys or not, they had surrendered the property by moving out and I should take possession of the property physically and they would record it as such on their logs.

That was the last I heard from them, they left owing rent, but they forgot to cancel their standing order, so when their wages hit the bank, luckily I got paid.

I knew someone who knew them, I was informed they were not happy they accidently paid the rent, not the brightest penny in the pile

If on benefits report them as a concerned landlord that they may be claiming benefits to which they are not entitled. If L A come back and tell you that they are not claiming from your address then they have left the property.

Get someone you know to ask to view the bathroom as a prospective buyer. Then get the person to let you in then call the Police. Theft does not actually have to occur just the planning of a crime is enough

I wonder what support the NRLA would give the tenants for acting in this way.

Give them 48 hours notice that you are going to come and inspect the property (as required by law)
If they are not there when you visit (or even better get someone else to go round), you notice the lock isn’t working” broken filled or with superglue or something similar” take a photo and change the locks as you “had to due to the property not being secure”

It is my understanding that a tenant can only have ONE AST the most recent being the valid one.
If your tenant has moved out and has a new ast then you should be able to take immediate possession of your property.
Speak to a professional asap