You can buy the British standards at a 30% discount.
You should read the British standards if:
you want to be an SIA approved contractor (following the British standards is a condition of approval)
you own or manage a private security company and you want to make sure that your company follows industry best practice
you work in the private security industry and you want a better understanding of the standards that you should be working to.
The British Standards Institution (BSI) has agreed to supply these standards at 30% below the catalogue price. You must order the standards using this BSI order form (ODT, 41.4 KB) to qualify for the discount.
The BSI will send your order direct to your business address. You do not need to pay VAT, and postage and packing is included. If you have any questions about your order, please contact the BSI using the contact details on the order form.
We have agreed this discount with the BSI to help reduce the costs of regulation. We do not profit financially from any order you place for British standards. Other standards you may find useful.
The BSI may also supply other standards at a 30% discount, at their discretion.
If you want to be an approved contractor, you may want to buy other standards that relate to business improvement. Some examples are:
BS ISO 10002:2018 Customer satisfaction - Guidelines for complaints handling in organizations
BS EN ISO 22301:2019 Security and resilience - Business continuity management systems
BS EN ISO 14001:2015 Environmental management systems - requirements with guidance for use
See more here