In a letter to the home secretary, the Justice and Home Affairs Committee said that cooperation on law enforcement and criminal justice between the UK and the European Union has been "set back in certain respects".
The UK's Financial Conduct Authority has launched criminal proceedings against Daniel Pugh, who is charged with one count of fraud and three offences of breaching the Financial Services and Markets Act 2000.
At the High Court on 14 July, the UK's Serious Fraud Office successfully recovered a property and its rental income from Dr Guang Jiang, an agent who helped British technology company Sarclad to pay bribes to secure business in China.
For the first time, judges and magistrates will have guidelines to assist in sentencing perverting the course of justice and witness intimidation offences.