A London High court preliminary hearing examining Ferrari's espionage charges against Mike Coughlan on Tuesday was postponed for 24 hours to give McLaren's chief designer time to prepare a written affidavit.
Coughlan, who has been suspended by McLaren, allegedly copied and kept documents containing more than 700 pages of detailed technical information on Ferrari's Formula One cars.
Ferrari believes Coughlan may have been received the documents in April from its former engineer Nigel Stepney, who is suspected of seeking to sabotage the team and is under investigation in Italy.
Stepney has denied giving Coughlan any classified Ferrari data and has accused his former team of trying to discredit him because he was seeking employment elsewhere.
Both Stepney and Coughlan are reported to have contacted Honda last month for possible job opportunities.
"Ferrari are terrified that what I have in my mind is valuable. I guess I know where the bodies have been buried for the last 10 years, there were a lot of controversies," Stepney said at the weekend.
Officials who searched Coughlan's house last week found Ferrari documents stored on the hard drive of his computer.
"Coughlan should not have had those documents, nor should he have copied or stored them," Ferrari lawyer Nigel Tozzi told the Court.
"He behaved disgracefully," Tozzi added.
The Italian team asked the Court on Tuesday for a copy of the official report on the search carried out in Coughlan's home, saying it would be of use to prosecutors investigating the Stepney case in Italy.
A copy will also be forwarded to Formula One's governing body FIA.
Ferrari's British lawyers have also asked the Court for access to a computer used by Coughlan but owned by an unnamed third party.
The alleged espionage has rocked the Formula One world and Ferrari President Luca Cordero di Montezemolo said last week it was "a case of unprecedented gravity."
McLaren has assured Ferrari that none of its intellectual property was used on McLaren race cars.
In response to urging from the British team, world motor racing authority FIA has begun an inquiry into the case, stressing that it had the "full cooperation" of both teams.
The probe, FIA said, would not concern the legal aspects of the case but only focus on any possible breaches of FIA regulations.
McLaren suspended Coughlan pending the results of the criminal probe being carried out by prosecutors in the northern Italian city of Modena, close to Ferrari's base at Maranello.
Last month Ferrari filed a first criminal suit against long-time technical staffer Stepney for possible attempted sabotage before the Monaco Grand Prix.
Stepney denied all wrongdoing and accused Ferrari of waging a "dirty tricks" campaign against him.
Judicial sources said the case was linked to the discovery of a powder, whose exact nature has yet to be established, on the fuel tanks of drivers Felipe Massa and Kimmi Raikkonen six days before the race.
Stepney, 48, had reportedly been unhappy at Ferrari since the departure of his immediate boss, tactical supremo Ross Brawn, last year.
He was moved out of the race squad and made head of team performance development - a move he considered a demotion to a backroom job and led to an interview in the British press criticising the team.
He has been widely linked to a move to Honda.
Stepney is a highly popular ex-pit crew leader who became Brawn's No.2 and was instrumental in Ferrari's six constructors' and five drivers' titles between 1999 and 2004.
