The embattled former Nigeria Minister of petroleum resources will be answering questions on various allegations of corruption and embezzlement of about N4 trillion since she joined President Umaru Musa Yar’Adua’s government in 2007.

The Nigerian Senate had probed and recommended her for prosecution on various allegations of corruption, which include alleged payment of N30.9 billion to contractors while she held office as transport minister.

The lawmakers also indicted her in 2009 for allegedly transferring N1.2 billion into a private account of a toll company without due process, even though she denied any wrongdoing.

In 2014, the then Governor of Central Bank, the present Emir of Kano, Sanusi Lamido Sanusi alleged that the sum of $20 billion ( about N3.4 trillion) was missing under the watch of Alison-Madueke but she denied.

However, an independent audit firms, including the KPMG and Price water house coopers was asked to audit the financial misappropriation and later confirmed billions of dollars of oil money were missing, the most notable being $20 billion in 2014.

In March 2014, the House of Representatives mandated its Committee on Public Accounts to investigate the alleged squandering of N10 billion over a two-year period on the arbitrary charter and maintenance of a Challenger 850 aircraft for unofficial use by Alison-Madueke.

Such act was said to contravene the “Fiscal Responsibility Act and all other laws on fiscal discipline” Acting on what it termed reliable evidence, the House said it learnt that Alison-Madueke had allegedly sunk at least N3.120 billion into the maintenance of a private jet dedicated to the service of herself and her family.

A breakdown of the money, showed that the sum of 500,000 Euros (N130 million) was spent every month on the maintenance of the airplane, which amounted to N3.120 billion for the two years in question.

In all, the embattled former minister will be answering questions on how she had allegedly misappropriated about N4 trillion between 2007 and 2015.