During apartheid, Galeng was chairperson of the Northern Cape branch of the United Democratic Front and president of the Huhudi Civic Association.
He later testified to the Truth and Reconciliation Commission about petrol-bomb and other attacks on his home by A-Team vigilantes, as well as about torture he experienced while in police detention in 1986 to 1987.
In 2015, there was a minor scandal when City Press reported about fuel, groceries, and takeaway food bought by Galeng in a "spending spree" on the ANC's corporate credit card.
In October 2018, the Sunday Times reported that Galeng's department was spending R50,000 per month to station two security guards at his home in Vryburg, even though his primary residence was in Mahikeng.
[7][8] The opposition Economic Freedom Fighters called for Galeng's dismissal and he was summoned for questioning before the provincial legislature's Standing Committee on Public Accounts.