On Inauguration Day, both the outgoing and incoming US presidents issued controversial pardons that expanded the power to new limits.

Joe Biden gave family members pre-emptive pardons, while Donald Trump pardoned nearly 1,600 people charged with crimes related to the riot at the US Capitol.

The BBC’s Analysis Editor Ros Atkins examines how both cited “politically motivated prosecutions” to explain their actions – and why that’s a challenge for trust in the justice system going forward.