Wearing a loose-fitting, beige jail-issue T-shirt, Combs hugged defence lawyer Marc Agnifilo and smiled before sitting down at the defence table on Tuesday in US District Judge Arun Subramanian's Manhattan courtroom.
Lawyers for Combs, who has pleaded not guilty, wrote in a Monday court filing that the notes concerned defence witnesses and strategies, and were subject to attorney-client privilege, a legal doctrine that safeguards confidential communications between lawyers and their clients.
Sean "Diddy" Combs' is scheduled to go on trial starting in May, 2025 on three felony counts. (AP PHOTO)
The defence lawyers called the seizure of the notes a violation of Combs' right to a fair trial and the protection against self-incrimination and unreasonable searches and seizures under the US Constitution.
Prosecutors with the US Attorney's Office in Manhattan said the notes discussed Combs paying a potential witness, demonstrating he was trying to obstruct justice. Prosecutors said an investigator took photos of the notes during a broad, pre-planned search on October 28 by various federal agencies of the Metropolitan Detention Center in Brooklyn.
This investigation could lead to more charges against Combs, making the photographs fair game as evidence, according to prosecutors.
Combs, 55, was arrested in September on charges accusing him of using his business empire including record label Bad Boy Entertainment to transport women and male sex workers across state lines to take part in recorded performances called "Freak Offs".
The music mogul is scheduled to go on trial starting in May, 2025 on three felony counts: racketeering conspiracy, sex trafficking and transportation to engage in prosecution. Combs' lawyers have said the sexual activity described in the indictment was consensual.
Separately, Combs is seeking to be released on $US50 million ($A77 million) bail backed by his $US48 million ($A73 million) Florida mansion and co-signed by several family members. He has been denied bail three times, with multiple judges citing a risk that he might tamper with witnesses.