Not exactly, I think it was more the CPS saying "Just don't say anything" ;
https://www.dailyecho.co.uk/news/26172590.police-considered-disinformation-statement-henry-nowak-trial/?callback=in&code=NZCXYJU5YJGTYJJHOC0ZNDVMLTGZMMYTMJE4Y2Y2YTKWNZCZ&state=01e2e24bc9dd4ad7921e7712ef926086
"Hampshire police considered issuing a statement warning against disinformation during the trial of Henry Nowak’s killer, it has been revealed.
The county force has said a “significant” amount of misinformation and disinformation was being posted online, including requests to share information relating to the case before it had been examined in the trial.
Police were warned by the Crown Prosecution Service that protecting the “integrity” of the Southampton Crown Court jury trial of 23-year-old Vickrum Digwa “was essential” and ultimately police did not issue a statement. "