It's interesting to know how it works in other countries, every country has it's own contradictions in drugs law. Social laws don't work. They tried legislating against any non straight sex, didn't work. The laws on how women must live their lives have been mostly broken down to give us choices in life. They tried legislating against contraception, very few countries still have that in place. They legislated against alcohol in the USA for years, caused an organised crime boom, just like anti-drugs laws have. Legislating for what people can and can't do in private is a lost cause.
Overall I'm glad I'm currently in the UK, they are less controlling of the population than many countries even though the British government are currently bringing through the most abhorrent legislation to give an amnesty to the rogue soldiers who raped and murdered innocent civilians, including children, because the UK have been ordered to allow the victim's families their day in court, something legally denied to them at the time. What is the reason they want to keep the murderers safe from justice? They say the soldiers are old men now so shouldn't have to be confronted with the murders and rapes they committed when they were young. The victims families disagree. Why they don't want to weed out the bad ones and have a better army that could be respected is a mystery. Only Paraguay has such an extreme law protecting soldiers from prosecution no matter what they do. Soon the UK will too. Be afraid of the government you elected Britain. If you tolerate this, your children will be next.
So for human rights the UK doesn't hold any high ground, but I guess since it's not illegal to have drugs in your system, there is no crime revealed by a blood test. I wasn't thinking of the police btw, I was just worried about how it might affect my perscriptions if the doctor knew I'm partial to a little bit of happiness now and again throughout the day.