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Lord Campbell of Croy
asked Her Majesty's Government:What progress is being made with trials of the improved police car siren known as White Noise Localiser and referred to in the House on 25 March (H.L. Deb., col. 1527). [HL2757]
Lord Williams of Mostyn
Trials conducted by Leeds University have been concluded and I understand that it has provided the noble Lord with the findings. The emergency services, including some police forces, are assessing the suitability of the product.