LONDON: A British lawyer who issued Hamas’ legal challenge against its ban in the UK said he was unlawfully detained under the Terrorism Act last month, The Guardian reported on Wednesday.

Fahad Ansari said his phone, which contained legally privileged information, was examined by police because he was known to have Hamas as a client.

On Wednesday, he launched legal proceedings against Home Secretary Yvette Cooper and the chief constable of north Wales police over the incident.

Ansari said on Aug. 6, while returning from a family holiday in Ireland, he was stopped by officers at Holyhead port in Wales.

He is challenging his treatment, including detaining and questioning, the seizure of his work phone and the copying of its data for examination.