Lawyers for a man accused of assisting the gang behind David Byrne’s murder at the Regency Hotel have challenged the admissibility of certain pieces of CCTV evidence.

Paul Murphy, of Cherry Avenue in Swords, Dublin, denies facilitating the murder by allowing a car to be used by those responsible.

The judges have already watched extensive CCTV footage of the movement of certain vehicles said to be relevant to the prosecution’s case.

Today, Mr Murphy’s barrister, Bernard Condon SC, challenged the admissibility of certain pieces of the CCTV compilation by raising data protection and privacy issues.

In response, prosecuting barrister Sean Gillane SC said there was a highly constitutional imperative requiring gardaí to seize such evidence.

He said they must go out and get it, noting that it is their duty before adding that it’s up to the court to decide on its relevance and whether or not it’s probative.

The court will deliver its ruling tomorrow.