If you’re planning a career in security, one question comes up more than almost any other: “Will my criminal record stop me from getting an SIA licence?” It’s a fair worry nobody wants to invest time and money into training only to be turned down at the final hurdle.
The honest answer is: it depends. Having a criminal record does not automatically disqualify you from holding a Security Industry Authority (SIA) licence. Thousands of people with past convictions are approved every year. But some offences will almost certainly lead to refusal, while others are judged case by case depending on how serious, recent, and relevant they are to security work.
This guide breaks down exactly how the SIA assesses criminal records in 2026, what offences matter most, and what you can do to give yourself the best possible chance including why completing a proper Door Supervisor Course London is one of the smartest steps you can take before applying.
How the SIA Reviews Your Criminal Record
Every SIA licence application includes a criminal record check. This isn’t optional, and there’s no way around it the SIA checks every applicant, regardless of the role you’re applying for (Door Supervisor, CCTV Operator, Close Protection, and so on).
The check looks beyond simple convictions. It also picks up:
- Convictions, whether spent or unspent
- Cautions and formal warnings, even where no prosecution followed
- Conditional cautions
- Court orders, including some civil orders relevant to safeguarding
- Overseas convictions, if you’ve lived abroad in the past ten years
When reviewing your history, the SIA weighs four main factors:
- Relevance Is the offence connected to the type of trust and responsibility a security role involves?
- Seriousness How severe was the offence, and what sentence did it carry?
- Recency How long ago did it happen?
- Pattern Was it a one-off, or part of a repeated pattern of behaviour?
A single minor offence from many years ago is treated very differently from a recent, serious, or repeated one.
What Counts as a “Relevant” Offence?
The SIA maintains a list of offence categories it considers directly relevant to licensing decisions. These are the ones that receive the closest scrutiny:
- Violent and abusive behaviour (including assault and affray)
- Sexual offences
- Drug-related offences, especially supply or trafficking
- Offensive weapons and firearms offences
- Theft, fraud, and other dishonesty offences
- Criminal damage
- Terrorism-related offences
- Proceeds of crime offences
- Social security and benefit fraud
- Abuse or neglect of children
- Private Security Industry Act offences
- Certain driving offences that carried a custodial sentence
Not every conviction on your record will fall into these categories. A minor motoring fine or an old public order offence with no aggravating factors, for example, is far less likely to affect your application than something on the list above.
Automatic Refusal: The Offences That Rule You Out
Recent updates to SIA policy have tightened the rules around certain categories. As of the most recent criminality criteria, some offences will lead to automatic refusal of a licence application, regardless of how long ago they took place. These generally include:
- Sexual offences of any kind, including those committed abroad
- Serious child abuse or neglect convictions
- Custodial sentences exceeding 48 months (4 years)
The list of offences considered “relevant” has also been widened to include newer categories such as modern slavery, human trafficking, domestic abuse, upskirting, revenge pornography, female genital mutilation, and certain immigration and tax-related offences. If any of these appear on your record, expect your application to be scrutinised heavily and in several cases, refused outright.
It’s also worth knowing that the overseas criminal record check window has been extended, meaning offences committed abroad are looked at over a longer period than before. If you’ve lived or worked outside the UK in the last decade, be prepared to provide an overseas conduct certificate as part of your application.
Sentence Length and Recency: Why They Matter So Much
For offences that aren’t on the automatic refusal list, the SIA looks closely at how serious the offence was, judged largely by the maximum sentence it could have carried, and how much time has passed since.
Generally speaking:
- Offences with a maximum sentence of four years or more are treated as serious, regardless of what sentence you actually received.
- More recent offences carry more weight than old ones. A conviction from 15 years ago, with no repeat offending since, is judged very differently from something that happened last year.
- A pattern of offending even of relatively minor things can be treated more seriously than a single isolated incident, because it speaks to ongoing risk.
This is why two people with what looks like a “similar” record on paper can get very different outcomes. Context and timing genuinely matter.
What About Spent or Minor Convictions?
A criminal record doesn’t mean a closed door. The SIA reviews every application on its own facts, and thousands of licences are granted each year to people who disclosed previous convictions. Publicly available figures show that only a small fraction of applicants with any conviction at all end up being refused the overwhelming majority go on to be approved, particularly where the offence is minor, unrelated to security work, or happened a long time ago.
The key thing to understand is that you must always be honest on your application. Failing to disclose a conviction even one you think is irrelevant is treated far more harshly than the conviction itself would have been. Non-disclosure can lead to an automatic refusal or, if discovered after a licence is granted, revocation.
What Happens If Your Application Is Refused?
If the SIA refuses your application, you’ll receive a letter explaining the reasons. You do have the right to challenge this decision through a formal appeal, which is heard by a magistrates’ court (or the equivalent in Scotland and Northern Ireland). Appeals need to be lodged within a set timeframe of receiving the refusal notice, so don’t delay if you believe the decision was wrong or that important context wasn’t considered.
Before appealing, it’s worth getting advice either from a solicitor experienced in SIA matters or from a training provider who understands the licensing process, since the paperwork and evidence you submit can make a real difference to the outcome.
How Training Fits Into the Picture
Here’s something a lot of people overlook: your SIA licence application and your training course are two separate things, but they work together. Completing a recognised, high-quality training course doesn’t erase a criminal record, but it does show the SIA and future employers that you’re serious about working professionally and responsibly within the industry.
If you’re based in or around the capital and want to give yourself the strongest possible start, enrolling on a Door Supervisor Course London is the natural first step. A proper course covers exactly the areas the SIA cares about: conflict management, understanding the law, health and safety, and physical intervention where relevant all of which reinforce that you understand the responsibilities that come with the licence.
Choosing a training provider that’s transparent about the licensing process, and that can guide you through what to expect from the criminal record check, also takes a lot of the stress out of the process. It’s far better to walk into your application informed than to be caught off guard.
Practical Tips If You Have a Criminal Record
If you’re worried about how your history might affect your application, here are a few sensible steps:
- Be completely honest on every part of your application never leave anything out, even if you’re unsure whether it’s relevant.
- Get a copy of your record in advance so you know exactly what will show up and can prepare accordingly.
- Write a short personal statement if you’re able to, explaining context, remorse, and how your life has changed since the offence (this can sometimes be submitted as supporting information).
- Complete your training properly and choose a reputable provider it shows commitment and gives you confidence going into the process.
- Don’t guess if you’re unsure whether something on your record is “relevant,” ask the SIA directly or speak to a specialist adviser rather than assuming either way.
The Bottom Line
A criminal record is not an automatic barrier to working in security but it isn’t something to ignore either. The SIA takes a genuinely case-by-case approach for most offences, weighing relevance, seriousness, recency, and honesty. Only a specific, clearly defined set of serious offences will result in automatic refusal.
If your record includes something you’re unsure about, don’t let uncertainty stop you from applying. Get informed, be honest, and take your training seriously. Starting with a properly accredited Door Supervisor Course London gives you the best possible foundation, both for passing your licence application and for building a genuine career in the security industry.
Frequently Asked Questions
1. Can I get an SIA licence with a criminal record?
Yes. Having a criminal record does not automatically stop you from getting an SIA licence. The SIA reviews each case individually, looking at how serious, recent, and relevant the offence is before making a decision.
2. What offences lead to an automatic SIA licence refusal?
Sexual offences of any kind, serious child abuse or neglect convictions, and custodial sentences of more than four years generally result in automatic refusal, regardless of how long ago they occurred.
3. Do spent convictions still need to be disclosed to the SIA?
Yes. Because the SIA licence involves a higher level of public trust, spent convictions are still visible on the criminal record check and must be disclosed fully and honestly.
4. Will a minor offence from many years ago affect my application?
Usually not significantly. The SIA gives far less weight to old, minor, one-off offences, especially where there’s no pattern of repeat offending and the offence isn’t on the relevant offences list.
5. How far back does the SIA look at overseas convictions?
The overseas criminal record check window has recently been extended, so if you’ve lived abroad within roughly the past ten years, you may need to provide a certificate of good conduct or equivalent document from that country.
6. What happens if I don’t disclose a conviction on my application?
Non-disclosure is treated more seriously than most convictions themselves. It can lead to automatic refusal, and if discovered after a licence is issued, it can result in revocation.
7. Can I appeal if my SIA licence application is refused?
Yes. You can appeal a refusal through the magistrates’ court (or equivalent) within the timeframe stated in your refusal letter. Getting advice from a solicitor or experienced training provider before appealing is recommended.
8. Does completing a Door Supervisor course help if I have a criminal record?
While training doesn’t remove a criminal record from your check, completing a recognised Door Supervisor Course London demonstrates commitment to working professionally and gives you a clearer understanding of the standards the SIA expects.
9. Which offences does the SIA consider most relevant to a licence application?
Violence, sexual offences, drug-related crimes, weapons offences, dishonesty (theft and fraud), and offences involving children are treated as the most relevant to security licensing decisions.
10. Is it worth applying for an SIA licence if I have any criminal record at all?
In most cases, yes. Official figures show the large majority of applicants with a criminal record including many with relevant offences are still granted a licence. Refusal is far more common only where the offence is serious, recent, or falls under the automatic refusal categories.
