It's ALREADY illegal: Hammond says public inquiry and criminal probe will answer why Grenfell had flammable cladding banned on tall buildings

• Attention has focused on the causes of the devastating blaze on Wednesday 
• Cladding installed on the tower block was flammable and acted as a chimney 
• The material is illegal in America and Germany but was installed on Grenfell 
• Hammond today revealed he understood it was also illegal in Britain 

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