While a handful of episodes touch on social issues such as domestic violence (e.g., cases involving Indian and Bangladeshi women), racism (e.g., a black recruit facing internal prejudice or racist demonstrations), and immigration barriers for victims, these are incidental subplots integrated into standard crime investigations rather than central drivers of the narrative, character arcs, or premise. The main cast is a predominantly white British ensemble with organic turnover (e.g., departures of characters like WDC Viv Martella and DI Frank Burnside), reflecting the era's limited diversity without forced representation or clashes with source material.

Guest stars include some ethnic minorities mirroring London's multicultural setting, but there are no race/gender swaps, prominent LGBTQ+ storylines, identity politics, or critiques of traditional norms. No creator interviews emphasize activism, and there is zero evidence of controversies, backlash labeling it 'woke,' or DEI mandates. The show's reputation for gritty realism prioritizes entertainment and procedural storytelling over any ideological messaging, making it a refreshing example of traditional television free from contemporary progressive intrusions.