Jacob Zuma says National Prosecuting Authority boss Vusi Pikoli's suspension is grounds for the investigation against him to be reviewed and possibly abandoned.

He wants to be given a say if an assessment is carried out of the case he says is "politically motivated".

His attorney, Michael Hulley, confirmed yesterday that Zuma had sent the NPA a letter expressing "certain concerns".

Hulley declined to disclose the contents of the letter.

It is understood, however, that it asks the NPA to consider reviewing its case against Zuma and, if it agrees, to allow the ANC deputy president to "make representations" to the panel carrying out the review.

Pikoli has consistently denied allegations by Zuma that he was acting at President Thabo Mbeki's behest when he brought charges of fraud and corruption against him in 2005.

"My allegiance is to the constitution and the upholding of the rule of law.

I would also not allow any person under my authority to act with improper motives," Pikoli said in papers before the Pietermaritzburg High Court that heard Zuma's challenge of the case against him and struck it off the roll.

In a statement yesterday afternoon, Hulley expressed "grave concern" about a meeting of the Scorpions in June at which steps were discussed to dissuade the ANC from adopting, at its national conference in December, a policy conference proposal that the elite unit be transferred from the Department of Justice to the SA Police Service.

Scorpions chief Leonard McCarthy asked his colleagues for their opinions on how the Zuma, Mac Maharaj, Ngoako Ramatlhodi and "Bad Guys (Agliotti and Kebble)" matters could best be handled to ensure that the Scorpions continued to report to the Department of Justice.

"It is a matter of concern that the Scorpions would deem it necessary to react to resolutions of a political party in a manner that influences its prosecutorial decisions against Mr Zuma and other named individuals," Hulley said.

"This has reaffirmed the long-held view that the investigation against Mr Zuma is influenced by improper political motive, calculated to frustrate any leadership role to which Mr Zuma may be called, by the membership of the ANC.

"There can be no clearer demonstration of this than in the present instance."

With acknowledgements to Karyn Maughan  and Cape Times. .