In a letter to the company Nissan dated January 19, the lawyers mentioned they had some concerns about the way the company along with its legal team were treating some of the employees of Renault, as per reports from Le Journal du Dimanche, France.

Lawyers working for the French carmaker Renault have condemned their Japanese alliance partner Nissan, in the way it is handling the internal probe for Carlos Ghosn scandal. Ghosn was earlier the head of alliance that is being held in Japan, was accused that he did report millions of dollars in pay as the head of Nissan.

“Renault has gathered sufficient evidence to understand and regret the methods used by Nissan and its lawyers to seek interviews with Renault employees through the Japanese public prosecutor’s office,” they said.

Nissan was looking for “evidence to support allegations against Carlos Ghosn after his arrest” and was unsuccessful to refer its French partner, as per the latest news published in the newspaper. The firm also attempted to find some prove in Ghosn’s apartments in Brazil by searching it, Lebanon and the Netherlands without consent of Renault, the letter mentioned.

A Nissan spokesman said on Sunday, that the letter which was received weeks ago was “earlier reviewed and addressed in along with series of verbal and written responses from already been reviewed and fully addressed in a series of verbal and written responses from Nissan’s external attorneys.”

“The communications in question do not reflect the current state of discussions with Renault and its lawyers,” said Nissan spokesman Nicholas Maxfield.

“Nissan… has always welcomed an open and direct dialogue with its partners to help uncover relevant facts”, he added.

The arrest of executive earlier in November has uncovered differences between Renault and Nissan, which some of the industrial experts say was rising at Ghosn’s struggles to bring the two automakers’ operations closer and work together.

Ghosn was the important connection of the three-way partnership, which included Mitsubishi Motors, securing industry recognitions for working together and sometimes driving together conflicting threesome with headquarters based at 10,000 kilometres apart.

There was tension friction between the partners due to the complex ownership structure that would give Renault 43% of Nissan, wherein Nissan would have 15% stake in the French company and would have no voting rights.