The Employment Tribunal's report should is a 'tick list' of how to conduct yourself when confronted by an aggressive employer.
Essentially:
1. Stick to the rules at all times.
2. Confirm the purpose of any meeting with management in writing PRIOR to going into the office.
3. Have a witness present at all times.
4. Politely state your case and leave it at that.
Note that Captain Leslie did himself great service by being 'reasonable' in the eyes of the Tribunal.
I am so glad that all this is coming to light. It is dreadful of any airline to pressurise a Captain to break the rules. I had it done to me once and it was an appalling experience.