A chief superintendent has denied he wrote that a whistleblower Garda made up a claim that an alleged heroin dealer, accused of colluding with drug gardaí, was driving around the whistleblower's midlands home.

A Garda chief superintendent has denied targeting and humiliating a whistleblower who worked in his station.

Paul Bradley (54) and his sons Jason (20), Dean (24), and Ryan (18), of Liscarne Gardens, Dublin 22, have pleaded not guilty to the murder of Neil Reilly (36) at Esker Glebe in Lucan, Dublin on January 18, 2017.