The Argentine called an unscheduled news conference on Wednesday to address the ongoing "spygate" saga, admitting he has sent a member of staff to watch every team they have faced this season in training.
Bielsa's side have played the Lilywhites twice this season - PNE won 2-0 at Elland Road in the Carabao Cup in August.
The controversy further escalated on Wednesday when Bielsa called a press conference in which he admitted to having had all of his opponents' training sessions watched.
But he struck a defiant tone, insisting: "What I've done is not illegal".
"Hopefully we can knuckle down, keep giving performances we know we're capable of and we'll see where that takes us".
"My goal is to make the investigation easier and I don't think that something is going to make worse what they are looking for than what I'm saying right now", Bielsa said.
In a club statement, Leeds pledged to remind Bielsa and his staff of "the integrity and honesty which are the foundations that Leeds United is built on".
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But with that civil war winding down, Israeli security officials fear Hezbollah is refocusing its attention on Israel. Israel, coordinating with United Nations peacekeepers in Lebanon, said it sought no escalation.
The club could face a points deduction and financial penalties if found to have broken the rules.
"I am going to try and explain I did not have bad intentions", he added.
"I don't think it's right".
"Our owner Andrea Radrizzani has met with Derby County's owner Mel Morris to formally apologise for Marcelo's actions".
Using Derby as an example, Bielsa showed a presentation to the media on the number of formations Lampard's side had used, as well as the formations they struggled against, this season.
"We've got to take one more step in the right direction, all of this is put to bed for the players now. But I did it because it was not illegal or violating specific laws". But the experience he's had over the years, if it counts to little or nothing then you have to say in this day and age, then why do you do it?
Lampard, highly critical of the "unethical" conduct of Bielsa last week, said: "I made quite a few comments earlier in the week about it". 'We do analysis too, by the way.
To the journalists assembled Bielsa demonstrated in matches picked out by them how Derby lined up and the tactics they employed, going into detail about how this information was analysed.