Yes according to reports and evidence given to the foreign Affairs committee which this week published a review of Russian influence.
The UK government has an anti-corruption plan with updates on progress
Other useful sources on this are:
- Transparency International Corruption Index which measures citizens perception of how corrupt their country is. See how the UK ranks on a worldwide scale.
- Transparency UK has produced some reports on this.
- Corruption Watch UK is an NGO which monitors corruption and bribery. Its website has a collection of publications and projects
- On a worldwide scale see the UN convention against corruption website