I don't want to give the OP false hope but it may be worth reading through this guidance:
CPS guidance for private prosecutions
In particular:
Given that the public interest stage of the Full Code Test is highly unlikely to be met, it may be worth making the CPS aware of this case.
I was given this idea by my brother who saw the case on Reddit and immediately thought of this. Though not a legal professional he is involved in gathering and giving evidence in private prosecutions for another, non-railway organisation and their policy as a result is to make sure the public interest test is met for precisely this reason.
CPS guidance for private prosecutions
In particular:
When to take over a private prosecution in order to stop it
A private prosecution should be taken over and stopped if, upon review of the case papers, either the evidential sufficiency stage or the public interest stage of the Full Code Test is not met.
Given that the public interest stage of the Full Code Test is highly unlikely to be met, it may be worth making the CPS aware of this case.
I was given this idea by my brother who saw the case on Reddit and immediately thought of this. Though not a legal professional he is involved in gathering and giving evidence in private prosecutions for another, non-railway organisation and their policy as a result is to make sure the public interest test is met for precisely this reason.