If it's just to get into a night club, then not very great at all- the chances are that the culprit will not be found out and if they are, it would be by the nightclub door staff. They would confiscate the fake document and contact the police, who would just issue the offender with a verbal warning and possibly a small fine of about £30.
It is a far more serious offence to use fake ID in other contexts, such as when applying for a job or to access secure premises that are not usually open to the general public.
Just simply google cannabis social clubs (UK)
Six
Started in UK When???
442
beheading
anfield
over 700
jail
Dunlop in the uk in the 1970s
There is no official number but there would be thousands.
You can get fake nails from any pharmacy in the UK - such as Boots or Superdrug. You can also get fake nails from budget shops like Wilkinsons and Primark. Or if looking for good quality fake nails go into any nail salon and see what options they have for you.
snitch!!