Super-skunk cannabis has contributed to a record 100,000 people admitted for NHS treatment for drug-related mental health problems.

The number admitted with drug-related mental or behavioural disorders rose by three per cent to 99,782 in the past year, while hospital admissions for drug-related mental crises were up by 21 per cent in the decade that has seen super-strength cannabis emerge.

The new strains have seen the amount of Tetrahydrocannabinol (THC), the main psychoactive component of cannabis, increase up to five-fold – from five per cent 10 to 15 years ago to as much as 20 to 25 per cent.