The SIA badge (Security Industry Authority licence) is the mandatory licence required to work as a security professional in the UK. Door supervisors, CCTV operators, security guards, vehicle immobilisers, and close protection officers all need a current SIA licence to work legally. Getting an SIA badge requires completing an approved training course (typically 4–6 days for door supervisors), passing a First Aid at Work qualification, passing a Disclosure and Barring Service (DBS) check, and paying the SIA licence fee of £190. The process typically takes 6–10 weeks from starting training to receiving your licence. This guide covers the full SIA badge application process for 2026.
The SIA issues different licences depending on the security role. You must hold the correct licence type for the work you do:
A Door Supervisor licence allows you to work as a Security Guard as well — many professionals obtain DS first for the broader scope.
Before applying for an SIA licence, you must complete an Ofqual-regulated qualification from an approved training provider. The training includes both knowledge units and physical skills depending on the licence type.
Door Supervisor training (most common):
Security Guard training:
Training providers must be approved by an Awarding Organisation (City & Guilds, Highfield, NOCN, etc.) and deliver Ofqual-regulated qualifications. After completing training, your awarding organisation registers you with the SIA's approved list — you'll need this registration to submit your licence application.
The SIA badge application is completed online through the SIA website (sia.homeoffice.gov.uk). You cannot apply until your training is registered with the awarding organisation and you meet all eligibility requirements.
Step-by-step SIA application:
The Enhanced DBS (Disclosure and Barring Service) check is a background check that reveals criminal conviction history, including spent convictions. The SIA uses this to determine whether an applicant is 'fit and proper' to hold a licence.
What the DBS check covers:
Convictions that typically prevent SIA licencing:
Spent convictions and the SIA: Unlike most employment situations, the SIA can consider spent convictions. The Rehabilitation of Offenders Act 1974 (ROA) exceptions apply to SIA-licensed roles. If you have a criminal history, the SIA assesses each case individually — a single minor conviction many years ago may not prevent licencing. Contact the SIA before investing in training if you have concerns about your criminal history.