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Trade and other receivables (Details) - GBP (£)
£ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Trade and other receivables    
Government receivables £ 10,247 £ 10,905
Prepayments 7,669 7,169
Other receivables 1,811 790
Total trade and other receivables 19,727 18,864
R&D tax credit receivable £ 6,422 £ 7,212