Aminu Tambuwal, former governor of Sokoto State, is currently being quizzed by the Economic and Financial Crimes Commission, EFCC, in Abuja.
Tambuwal, a former governor and currently a serving senator, is in detention over alleged fraudulent cash withdrawals to the tune of N189 billion.
The development comes after the African Democratic Congress, ADC, alleged that EFCC was carrying out selective investigations targeting opposition politicians.
In a statement signed by its National Publicity Secretary, Mallam Bolaji Abdullahi, the party claimed that recent EFCC summons to senior members of the opposition coalition were politically motivated and linked to their political affiliations.
According to ADC, some of the cases being pursued are not based on new evidence but involve reopening files from past years.
