Interesting question, but I have another question.
Are policemen or people signing up to join the police required to take some kind of ethics or morality test?
Are these tests ongoing during their period of service?
What is the requirement before someone can become a policeman? No criminal record?
As far as I recall, no ethics or morality test, just an interview with three wise men.
My experience is that if you talk too much about ethics and morality, you'd be sent back to army.
The answers they want to hear are about upholding laws in force regardless of ethics and morality you believe.
They'd ask you some questions like why you want to join police, what would you do in certain situations etc.
The physical checkup must be at least PES B and show no tattoos, the criminal screening must show no records.
You can tattoos if you want to after you've passed out from PA, but not before recruitment.
My time, 4 O levels including English was a must, I'm sure with education requirements now.
Ongoing tests during period in service are only IPPT and shooting (day shoot and night shoot).