Essex Police say they are still committed to finding out what happened to Stuart Lubbock who died at Michael Barrymore's home near Harlow in 2001.
The High Court has ruled that Mr Barrymore is entitled to "more than nominal" damages from Essex Police for his wrongful arrest on suspicion of the rape and murder of 31-year-old Mr Lubbock in 2006.
Mr Lubbock's body was found in the pool after a party where drugs and alcohol were consumed.
A post-mortem examination later revealed that he had suffered serious injuries. In 2002, an open verdict was recorded at the inquest into his death.
In a statement Essex Police said: "Today’s judgement must not overshadow the questions which are still unanswered for Mr Lubbock’s family and friends."
It has been reported that Michael Barrymore, whose real name is Michael Parker, was seeking damages of more than £2 million claiming the arrest destroyed his television career.
Essex Police argued in the High Court that Mr Barrymore could have been lawfully arrested by another officer, meaning that only an award of nominal damages should be made, rather than the "substantial" sum sought by the star.
The judge ruled that there was "information available to the police that could have provided an arresting officer with reasonable grounds for a lawful arrest".
But he added that "there was only one designated arresting officer who had sufficient information and had been sufficiently briefed to enable her to arrest Mr Parker lawfully".
Essex Police said the designated arresting officer who did have the required knowledge to make a lawful arrest was stuck in traffic.
In a statement police said: "For operational reasons it was not desirable to postpone the arrest which was co-ordinated with the arrest of two other suspects."