Keith Vaz, chairman of the Commons home affairs select committee, said a Royal Commission is needed to explore all the issues around drugs.
He called for testing in prisons, measures to tackle legal highs and a look at how drugs money flows through our banking system.
He said: "In prisons we believe there should be compulsory testing, on arrival and on exit, and random testing during a prison sentence.
"On legal highs, it's moving so fast, there is a new legal drug every single month and we need a fast track system.
"Finally if you look at the banking system, this is the most lucrative crime in the world."
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After a relatively mild and quiet night, an episode of rain for many of us tomorrow.
The 34-year-old from Coulsdon in Surrey died during the private party in Headley in the early hours of Monday, Surrey Police said.
The Home Office made the arrests at various restaurants across London on July 4.