The police watchdog has decided against investigating how the Metropolitan police dealt with an assault case against the late Love Island host Caroline Flack.

The 40-year-old presenter killed herself on 15 February while awaiting trial on charges that she assaulted her boyfriend, Lewis Burton, with a lamp.

The Independent Office for Police Conduct said on Wednesday there was no indication of a causal link between the actions or omissions of the police and Flack’s death.

Met police officers last had contact with Flack on 13 December when she was in custody following the alleged assault.

The Met referred itself to the watchdog, as is required when a member of the public dies after recent contact with police.

The IOPC noted that while Flack was in custody, Met officers arranged for her to see a healthcare professional and followed relevant procedures.

It said: “On this basis, we have returned this referral to the Metropolitan police service’s department for professional standards for them to deal with the matter in whatever manner they decide.”

The department for professional standards concluded that a formal investigation was not required, the Met said.

“A comprehensive review of the circumstances surrounding all police contact with Ms Flack following her arrest and detention has already taken place as part of the referral process. No conduct has been identified on the part of any officer,” it said.

Separately, the Crown Prosecution Service has said it will review its handling of the assault case against Flack.

Flack was bailed after an initial court hearing and her trial was due to start on Wednesday.

After her death, Flack’s management team accused the CPS of preparing a “show trial”, with Burton having said he did not support a prosecution and Flack having denied the charge against her.

Following a freedom of information request from the Daily Mirror, it is understood the CPS will look into its handling of the matter through a post-case review panel, a procedure that is not uncommon, especially in regard to complex or sensitive cases.

It is understood the outcome of the review will not be made public.