Read more: 3 ex-SA police officers arrested in Ghana

Koku Anyidoho earlier accused the NPP of dealing with mercenaries in the country.

He said "The NPP is now dealing with mercenaries because somebody wants power at all cost. It is very scary. They did it to Kwame Nkrumah and now want to do it again."

See more: NPP dealing with mercenaries - Koku Anyidoho

But Obiri Boahen disagreed saying, "…Only the unrepentant immature person will draw that conclusion…the police have not done any investigations, so, it is only immature people exhibiting amateurish [behaviour], who will draw that conclusion.

"Even nursery kids will not talk that way. Let’s not rush.…It is absurdity of the highest order," he noted.

"… To draw that conclusion is madness…even if criminals are arraigned before court, the presumption is that they are innocent until proven guilty," he told Accra-based Class FM on Tuesday, March 22, 2016.

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The trio arrested by the BNI are, 54-year-old Major Ahmed Shaik Hazis (Rtd.), 39-year–old  WO/ Denver Dwayhe Naidu (Rtd.) and 45-year-old Captain Mlungiseleli Jokani (Rtd.), were picked up on Sunday March 20, 2016 at El Capitano Hotel in Agona Duakwa in the Central Region.

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The suspects according to BNI claim they are security management consultants, for one  Hazis who was part of the flagbearer of the NPP, Nana Akufo-Addo’s security detail during the 2012 elections.

BNI documents available to the media say "The trio, all ex-police officers were engaged in training fifteen  young men in various military drills, including unarmed combat, weapon handling, VIP protection techniques and rapid response maneuvers."

They are, however, assisting the BNI in further investigations.