The author obliquely mentions that blacks are 5 times more likely to be imprisoned in the UK. I decided to look into why this might be happening and turns out that
Population
Population of England and Wales, source: 2011 ONS Census
White – 48,209,395 (85.97%)
[White British – 45,134, 686 – 80.48%] Black – 1,864,890 (3.32%)
Asian – 3,820,390 (6.81%)
Chinese – 393,141 (0.7%)
Mixed race – 1,224,400 (2.18%)
Arab – 230,600 (0.41%)
Other – 333,096 (0.59%)
Total – 56,075,912
Offenders found guilty of selected offences by ethnicity in England and Wales, 2011, source: MoJ
Murder
White – 223 (65.01%)
Black – 57 (16.61%)
Asian – 29 (8.45%)
Other – 4 (1.16%)
Not stated – 30 (8.74%)
Total – 343
Blacks are 6.6 times more likely than whites to commit murder.
Possession of an article with a blade or point in a public place or on school premises
White – 4518 (72.26%)
Black – 1034 (16.53%)
Asian – 224 (3.58%)
Other – 93 (1.48%)
Not stated – 383 (6.12%)
Total – 6252
Blacks are 5.9 more likely than whites to commit of knife offences
Possession of firearms, certificate related and miscellaneous firearms offences
White – 989 (64.05%)
Black – 281 (18.19%)
Asian – 72 (4.66%)
Other – 33 (2.13%)
Not stated – 169 (10.94%)
Total – 1544
Blacks are 7.3 more likely than whites to commit firearms offences.
Population
Population of England and Wales, source: 2011 ONS Census White – 48,209,395 (85.97%) [White British – 45,134, 686 – 80.48%] Black – 1,864,890 (3.32%) Asian – 3,820,390 (6.81%) Chinese – 393,141 (0.7%) Mixed race – 1,224,400 (2.18%) Arab – 230,600 (0.41%) Other – 333,096 (0.59%) Total – 56,075,912
Offenders found guilty of selected offences by ethnicity in England and Wales, 2011, source: MoJ
Murder
White – 223 (65.01%) Black – 57 (16.61%) Asian – 29 (8.45%) Other – 4 (1.16%) Not stated – 30 (8.74%) Total – 343
Blacks are 6.6 times more likely than whites to commit murder.
Possession of an article with a blade or point in a public place or on school premises
White – 4518 (72.26%) Black – 1034 (16.53%) Asian – 224 (3.58%) Other – 93 (1.48%) Not stated – 383 (6.12%) Total – 6252
Blacks are 5.9 more likely than whites to commit of knife offences
Possession of firearms, certificate related and miscellaneous firearms offences
White – 989 (64.05%) Black – 281 (18.19%) Asian – 72 (4.66%) Other – 33 (2.13%) Not stated – 169 (10.94%) Total – 1544
Blacks are 7.3 more likely than whites to commit firearms offences.