article_snippet: Detectives would face a 28-day time limit which could only be extended under strict rules in the Home Secretary’s shake-up.
article_snippet: But police and prosecutors have warned a limit could hamper complex cases, such as inquiries into fraud or historic sex abuse.
article_snippet: Conditions can apply, such as curfews.
highlights_snippet: A senior-ranking officer will have to sign off applications for extension .
  