Ghana minister Cecilia Abena Dapaah reported a robbery. Why was she arrested?

The Office of the Special Prosecutor, which deals with graft allegations against high-level officials, announced that it had arrested and was questioning Ms Dappah for “suspected corruption and corruption-related offences regarding large amounts of money and other valuable items reportedly stolen from her residence”.
Source : https://www.bbc.com/news/world-africa-66291294?at_format=link&at_link_origin=BBCWorld&at_ptr_name=twitter&at_link_type=web_link&at_campaign_type=owned&at_bbc_team=editorial&at_link_id=07C45E2A-2A91-11EE-9CD5-BCA5FF7C7F44