Daily Mail reports that officer Paul Birch decided to leave the police in 2024 after 24 years of service as a counter-terrorism expert. The article presents Birch’s decision as a turning point, describing it as his “final straw,” though it does not provide additional details in the supplied text. It also references the death of Henry Nowak, characterizing it as “no surprise,” but no further information about the circumstances of Nowak’s death is included in the excerpt provided. Because only one outlet and no additional reporting details are included in the prompt, other aspects such as the reasons behind Birch’s resignation, the role he played in any investigations, and any official findings about Henry Nowak’s death are not corroborated here. The summary therefore reflects only what is stated in the supplied Daily Mail material: a counter-terrorism officer with 24 years in policing leaves in 2024, with the article linking that decision to the context surrounding Henry Nowak’s death. The underlying facts beyond that are not available from the provided sources.