Last Updated on September 21, 2026 by Karl Thompson
Left realists John Lea and Jock Young argue that crime has three causes: relative deprivation, marginalisation and subculture. Applied to ethnicity, the argument runs that ethnic minority groups experience more of the first two, and that some of the recorded difference in offending is therefore real rather than an artefact of policing.
This is the position that takes both sides of the argument seriously. Left realists accept that policing is discriminatory and that some of the difference in offending is genuine, caused by deprivation. That makes it the most defensible position in most essays — and also the one with the sharpest single weakness, which you should know before you use it.
The weakness in one line: the ethnic groups with the highest poverty rates in Britain are not the groups with the highest offending rates.
This post covers left realism as applied to ethnicity within the crime and deviance module, AQA Paper 3 (7192/3).
Relative deprivation
Relative deprivation is not absolute poverty. It is the sense of being deprived relative to others, and relative to what you have been taught to expect. A society that tells everyone they can have consumer goods, and then denies a section of them the means to get any, produces resentment rather than resignation.
The current figures on ethnicity and poverty are stark.
| Household ethnicity | Poverty rate |
|---|---|
| Bangladeshi | 53% |
| Pakistani | 48% |
| Other ethnic groups | 44% |
| Black or Black British | 39% |
| Asian or Asian British | 38% |
| Mixed or Multiple | 28% |
| White | 18% |
Source: Joseph Rowntree Foundation, UK poverty statistics, 2026.
Deep and persistent poverty follows the same pattern. Between 2011 and 2023, people in Bangladeshi (11%) and Pakistani (9%) households were around five times more likely than those in White households (2%) to experience persistent very deep poverty.
Read that table carefully, because it is where the theory runs into trouble. More on this below.
Marginalisation
Marginalisation means being pushed to the edges of society — excluded from the institutions through which people normally pursue their interests, and therefore without the organised, political means to express grievance. Left realists argue that marginalised groups lack the trade unions, professional bodies and political representation that allow others to press a case, which makes disorganised and criminal responses more likely.
Measures of marginalisation include deprived neighbourhoods, housing insecurity, unemployment and exclusion from school.
Neighbourhoods. Black people are substantially more likely to live in the most deprived areas, and around three times as likely as White people to live in areas with barriers to housing and services.
School. In 2023/24, pupils of Mixed White and Black Caribbean heritage were permanently excluded at 0.33 per 100 pupils against 0.15 for White British pupils. Pupils eligible for free school meals were over five times more likely to be permanently excluded.
The strongest single piece of evidence for left realism comes from the Ministry of Justice’s data share with the Department for Education. Among young people cautioned or sentenced for an offence, 63% of Black and 66% of Other-ethnicity young people were eligible for free school meals, against 52% of White young people — and 24% of the pupil population as a whole.
Nearly two-thirds of Black young people entering the criminal justice system come from families poor enough to qualify for free school meals. That is a class fact before it is an ethnicity fact, and it is exactly what left realism predicts.
Subculture
The third element is the least well evidenced. Lea and Young argue that groups experiencing relative deprivation and marginalisation together develop subcultures that provide alternative routes to status, some of them criminal.
There is no good way to measure this. Subcultures do not appear in official statistics, and the concept does most of its work by assertion. Say so — it is a fair criticism and few candidates make it.
Evaluation
| ✓ Strengths | ✗ Limitations |
|---|---|
| Accepts both discrimination and real offending, rather than having to deny one — the most defensible position available | The Asian problem. Bangladeshi (53%) and Pakistani (48%) households have the highest poverty rates in Britain, above Black households (39%). Yet Asian people are searched at 1.4 times the White rate against 3.8 for Black people, and Asian custody rates are close to White rates. Deprivation cannot be the whole story |
| Strongly supported by the FSM data: 63% of Black young people in the CJS are FSM-eligible against 24% of all pupils | Correlation does not establish direction. Structural racism could produce both the deprivation and the criminalisation, which would make relative deprivation a symptom rather than a cause |
| Grounds the explanation in something measurable, unlike cultural accounts | Subculture is essentially unmeasurable and does little work |
| Takes ethnic minority victims seriously — they are over-represented among victims as well as offenders, and Black homicide victimisation is over four times the White rate | Gilroy argues left realism reproduced the pathology account in gentler language — explaining black criminality rather than questioning whether the category is real |
| Produces actual policy: on this account, reducing deprivation reduces crime | Does not explain the find-rate evidence: equal find rates alongside a 3.8-times search rate points at policing, not offending |
The Asian problem, properly stated
This is the criticism to lead with, and the current data makes it much sharper than the textbook version.
If relative deprivation and marginalisation drive offending, the groups with the highest deprivation should show the highest recorded offending. They do not. Bangladeshi and Pakistani households have poverty rates of 53% and 48% — the highest in Britain, well above Black households at 39%. Bangladeshi and Pakistani people are also concentrated in the most deprived urban areas and face substantial labour-market disadvantage.
Yet Asian people are searched at 1.4 times the White rate, against 3.8 times for Black people, and the Asian custody rate (37%) sits close to the White rate (33%).
Left realists have two answers, neither entirely satisfying. The first is that deprivation interacts with other factors — family and community structures may mediate its effects, which imports part of the cultural explanation they were arguing against. The second is that the patterns differ by offence type, and Asian people are substantially over-represented in drug-offence sentencing — where the MoJ finds Asian offenders 58% more likely to receive custody than White offenders.
That second answer is the better one, and it is worth knowing: the disparity is not uniform across offences, and where it is largest the ethnic ordering changes.
Exam application
Left realism is usually the conclusion position in an ethnicity essay, because it can absorb both sides. A structure that works:
- The statistics, with the caveat that they measure the system as well as offending.
- Neo-Marxism and Gilroy: the statistics are constructed.
- Cultural explanations: the difference is real and cultural. Undercut with self-report evidence.
- Left realism: some of the difference is real and caused by deprivation, and policing is discriminatory.
- Evaluate left realism itself with the Asian problem.
- Conclude on the stage-by-stage data — the disparity is large in policing, small in court, large in prison and worst for children.
Step 5 is what separates a top-band answer. Most candidates use left realism as the safe landing point and never evaluate it.
Signposting and Related Posts
This post has been written for students studying crime and deviance as part of the AQA A-Level Sociology course, Paper 3 (7192/3).
For the general theory, see left realist criminology.
The competing explanations are cultural factors, Policing the Crisis and Paul Gilroy.
For the figures, see official statistics on ethnicity and crime.
Please click here to return to the homepage – ReviseSociology.com
Sources
Joseph Rowntree Foundation, UK poverty statistics: ethnicity (2026) and UK Poverty 2025. Ministry of Justice, Statistics on Ethnicity and the Criminal Justice System 2024 (published 27 November 2025). Home Office, Police powers and procedures, year ending 31 March 2025. Department for Education, Suspensions and permanent exclusions in England, 2023/24. Lea, J. and Young, J. (1984) What Is To Be Done About Law and Order?