STILLT - in your screenshots - the CPS letter in reply to you, promises, "I will contact our colleagues at Mermaids"
"colleagues" - that rather suggests a lack of impartiality.
"The CPS works in partnership with the police, courts, the Attorney General’s Office, the Home Office, the Ministry of Justice and other agencies throughout the criminal justice system (CJS)."
www.cps.gov.uk/criminal-justice-system
(No mention of Mermaids or any other lobby group on that page - or of Mermaids anywhere on the CPS site. There are however several references to "partnerships" with Stonewall and similar organisations on the CPS site: www.cps.gov.uk/search?keys=Stonewall
Perhaps "colleagues" indicates a less formal relationship than "partners"?)
"Prosecutors must be fair, objective and independent. When deciding whether to prosecute a criminal case, our lawyers must follow the Code for Crown Prosecutors."
www.cps.gov.uk/about-cps
The Code for Crown Prosecutors
General Principles
2.1 The independence of the prosecutor is central to the criminal justice system of a democratic society. Prosecutors are independent from persons or agencies that are not part of the prosecution decision-making process. CPS prosecutors are also independent from the police and other investigators. Prosecutors must be free to carry out their professional duties without political interference and must not be affected by improper or undue pressure or influence from any source.
(Well that is very reassuring. It would be very worrying if they were influenced by "persons or agencies that are not part of the prosecution decision-making process".)
2.7 When making decisions, prosecutors must be fair and objective. They must not let any personal views about the ethnic or national origin, gender, disability, age, religion or belief, sexual orientation or gender identity of the suspect, defendant, victim or any witness influence their decisions. Neither must they be motivated by political considerations. Prosecutors must always act in the interests of justice and not solely for the purpose of obtaining a conviction.
(Oh dear! Crown Prosecutors are confused about their legal obligations under the Equality Act 2010. They think that it is OK if they discriminate against someone on the basis of sex or gender reassignment - but not on the basis of "gender" or "gender identity", whatever they are.
Wonder where they got that idea? I do hope that they have not been influenced by "persons or agencies that are not part of the prosecution decision-making process".)
The CPS does seem to be rather heavily influenced by the College of Policing - and the CofP has shown itself to be rather easily led into misstating the law at Stonewall's behest.
(Screenshots)