The investigator in the trial of former COCOBOD boss and two others, Chief Inspector Thomas Prempeh Mercer has conceded that the Cocoa Research Institute of Ghana (CRIG) does not have any laid down protocol for testing fertilizers.

His admission is in sharp contrast with what he said in his evidence in chief that fertilizers go through a minimum of two years testing period at CRIG before a supplier could be issued a certificate.

The initial claim was to give legs to a denied narrative, that former COCOBOD Chief Executive, Dr. Stephen Opuni, ordered scientists at CRIG to shorten the testing of lithovit fertilizer, to stand on.

Asked if as part of his investigations he found any policy document concerning the testing period at CRIG, the witness said no.

“Now did you as part of your investigations find this policy in any regulation or any policy document of CRIG,” he was asked.

He replied: “No, My Lord. But My Lord this became necessary at the time to enable the senior scientists of various disciplines to review a colleague scientist’s work and to make corrections if any just to make sure the testing procedure was properly followed and my Lord through this policy some certificates were withdrawn.”

Chief Insp. Prempeh Mercer has been testifying in the trial where the former COCOBOD boss has been accused of facilitating the purchase of “untested” fertilizer by COCOBOD between 2014 and 2016 from Agricult Ghana Limited.

Detective Chief Inspector Thomas Prempeh appeared as the seventh prosecution witness in the trial of Dr. Opuni and Seidu Agongo who is the Chief Executive Officer of Agricult Ghana Limited.

The two are facing a total of 27 charges, including defrauding by false pretence, willfully causing financial loss to the state, money laundering, and contravention of the Public Procurement Act.

Under cross-examination on Monday, March 22, 2021, the trial investigator was walked through internal investigations by COCOBOD into the testing protocols at CRIG in 2017, an issue he admitted he was familiar with.

The trial investigator was shown various documents in exhibit, one of them is a query letter signed by Dr. Yaw Adu-Ampomah in his capacity as the Deputy Chief Executive in charge of Agronomy and Quality Control of COCOBOD.

The letter addressed to Andrew Yaw Akrofi, then Head Soil Science Division at CRIG, was to specifically solicit explanation why he should not be sanctioned for a test conducted by the division.

He forwarded the query to his superiors and a response to that query signed on behalf of the Executive Director of CRIG disabused the notion that the Division has set out rules on testing chemicals.

The letter signed by Rev. Fr. E.K. Oddoye, the then Deputy Executive Director of CRIG, which is in evidence as Exhibit 73, dated 22nd September 2017 under the headline “RE: QUERY – TESTING OF AGROCHEMICALS” reads in full:

“There are no laid down protocols as such. With the advent of the testing of chemicals and machines at CRIG, Scientists in the various Scientific Divisions evolved their own protocol based on standard scientific procedures.

“These methods differ in the various Scientific Divisions and have not been static. They are reviewed from time to time based on inputs from Ghana Cocoa Board, CRIG Management Scientists from the various Scientific Divisions of CRIG and new knowledge.

“Thank you.”

Meanwhile, the witness has admitted that his investigations did not find any report documenting any farmer complaints about the use of lithovit liquid fertilizer.

In a related development, Chief Insp. Thomas Prempeh Mercer was shown an exhibit on Omni Cocoa Aduane produced by Omnifert Limited which was bought by COCOBOD in 2018 though there was no document to show that it underwent any field test.

“My Lord just to put on record that we did not investigate Omni Cocoa Aduane,” he averred.

The cross-examination was conducted by lawyer Nutifafa Nutsukpui, stand in counsel for the second and third accused persons.


Find excerpts of the March 22, 2019 cross-examination below:

Q: Now Sir, you told this court about testing protocol or policy at CRIG, is that correct

Yes My Lord

Q: Now did you as part of your investigations find this policy in any regulation or any policy document of CR IG.

No, My Lord. But My Lord this became necessary at the time to enable the senior scientists of various disciplines to review a colleague scientist’s work and to make corrections if any just to make sure the testing procedure was properly followed and My Lord through this policy some certificates were withdrawn.

Q: Sir, so you found no written evidence of this policy at CRIG but according to you, you spoke to persons including Rev Father Oddoye and Dr F M Amoah

Yes, My Lord amongst other scientists.

Q: Sir, would you remember when you spoke with them

My Lord, from July when we took over till the time we ended the investigations.

Q: Kindly show him Exhibit H. Sir you have seen and reviewed this document. haven’t you.

Yes, My Lord.

Q: And you are aware that as part of Cocobod’s own investigations, the management of Cocobod sent out queries to the scientists at CRIG to find out what testing protocols were, that is correct.

Yes, My Lord.

Q: Please open to page 70 of Exhibit H. Sir on that page is one of the queries signed by Dr. Adu Ampomah in his capacity as the DCE A&QC of Cocobod, is that correct.

Yes, My Lord

Q: Now Sir, who is that query addressed to

My Lord it is addressed to Mr A Y Akrofi

Q: Sir, kindly read the first two paragraphs to the honourable court.

Witness read out

Q: Now please go to page 71. What do you find there

Re: Query Testing of Agro Chemicals dated 22nd September 2017.

Q: Please who is it addressed to.

The Deputy Chief Executive, A&QC.

Q: Who signed it.

Andrew Yaw Akrofi.

Q: Kindly read the first three paragraphs on page 71

Witness reads out.

Q: Now Sir, please go to page 73 and please confirm to the court that the reference number you just sighted on page 71 is the same reference number on the letter found on page 73 of Exhibit H.

Yes. My Lord.

Q: Please Sir. who signed the letter on page 73

Rev Father E K Oddoye (PhD). Deputy Executive Director for Executive Director.

Q: Sir, that is on a CRIG letterhead. that is correct

Yes, My Lord.

Q: So that is an official CRIG communication, that also correct

Yes. My Lord.

Q: Kindly read that letter to the honourable court.

Witness reads out.

Q: Please show him Exhibit 41. Sir, if you turn to the 3rd-page line 7 and 8 of that document that is Exhibit 41. Please read to the honourable court.

Witness reads out.

Q: Now Sir, if you go to the lines 21 to 23 of the third page of Exhibit 41 and kindly read to the honourable court.

Witness reads out. My Lord just to put on record that we did not investigate Omni Cocoa Aduane

Q: Now Sir, during your investigations you came across CRIG certificates in respect of the Lithovit for 2015 and 2016.

Yes My Lord including 2014

The case has been adjourned to next week March 29, 2021, for cross-examination by the counsel for 2nd and 3rd Accused to continue