Behind Guma's resignation

The DIS started investigating him soon after a local newspaper reported that Zimbabwe African National Union (ZANU-PF) had sponsored some current members of Botswana Democratic Party (BDP) during the Maun congress in May. 

Mmegi is reliably informed that DIS at some point secretly screened Moyo’s personal and business accounts. When he did not feel the leadership support against the internal BDP smear campaign and the DIS investigations, Moyo decided to step down.