Exemptions under the Licensing Act 2003
There are certain exemptions for raffles, tombola etc. and for small premises
Raffles, tombola etc.
Raffle prizes of alcohol are exempt if all the following apply:

The lottery is promoted as an incident of an exempt entertainment
All proceeds of the entertainment and raffle (after deduction of expenses) are not used for private gain
The alcohol is in sealed containers
There are no monetary prizes
Tickets are only sold during the entertainment at the premises where it takes place, and the raffle is drawn during the event.
Participating in the lottery or in gaming is not the main inducement to attend the entertainment.

Small premises exemptions
In certain circumstances conditions imposed on a small licensed premises do not apply
1. If your premises is

Primarily used for and is open to sell alcohol for consumption on the premises and
Your licence allows you to and you are providing musical entertainment and
The premises has a permitted capacity of not more than 200 people.

Council imposed conditions relating to the musical entertainment provided, other than those relating to public safety and the prevention of crime and disorder, will not apply and the following exemption will not apply.
2. If the above does not apply and

Your licence allows you to provide musical entertainment and
The premises has a permitted capacity of not more than 200 people and
It is between 8am and midnight and
The premises are not being used to provide any other description of regulated entertainment.

When you provide a performance of unamplified live music or provide facilities for people to take part in such a performance, Council imposed conditions relating to the musical entertainment provided will not apply.

Where a premises licence becomes subject to review, and following consideration of the case it is deemed appropriate, a condition may be added to a premises licence to the effect that these exemptions will not apply.