Yes. although I think some of the article such as Rotten Boroughs, Special Reports and articles from In the Back such as this
https://www.private-eye.co.uk/in-the-back could be described as investigative journalism.
"Wall of silence
Suspicious death
, Issue 1644"
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"MOTHER’S MISSION: Sheila Blanco with her son Mark, who died in 2006
SHEILA BLANCO had spent almost 17 years and £150,000 investigating the suspicious death of her son, Mark, at a 2006 gathering attended by drug-addled singer Pete Doherty when a Channel 4 documentary looked set to finally blow the case open.
The film, Pete Doherty, Who Killed My Son?, presented compelling fresh evidence that appeared to support Sheila's belief he had been murdered.
However, two years later, Scotland Yard refuses to investigate the new leads. Now Mark's family has submitted a complaint asking whether the Met's continuing lack of engagement is down to apathy, incompetence or corruption."