The minimum age of criminal responsibility is the lowest age where a person who commits an offence is considered to have enough maturity to understand their actions— and the fact they can be held criminally responsible for them.

It’s not the same as the minimum age of prosecution.

In Scotland the minimum age of criminal responsibility is 8, although a law has been passed that will raise it to 12. But 12 is still below 14, which is the minimum acceptable age in human rights terms.