The Central Criminal Court has heard that a hunting knife and a flick knife were found in the basement of Graham Dwyer’s architects firm.

The 42 year old of Kerrymount Close, Foxrock denies murdering childcare worker Elaine O'Hara at Killakee mountain in Dublin on August 22nd 2012, more than a year before her remains were found.

Detective Sergeant Peter Woods said the hunting knife had been considered ‘hugely significant’ by gardai, as it had been ordered on the Internet and delivered to Graham Dwyer's workplace on the day before Elaine O’Hara went missing.

He said the black handled hunting knife was ‘very clean’ but that the scabbard had ‘a number of small scratches on the leather.’

Det Sgt Woods told the court he found the knives after receiving a hand drawn map from Graham Dwyer’s solicitor on February 17, 2014, several months after Dwyer’s arrest.

The court heard one knife – a buck special – had been ordered online from activehuntingireland.ie with a request that the package be marked private and confidential.

Graham Dwyer is alleged to have been in an S&M relationship with Elaine O'Hara and to have stabbed her to death for his own sexual gratification.

Her remains were found in the Dublin mountains in September 2013.

The court earlier heard more about the CCTV system at the apartment complex of Ms O'Hara.

Joe Mason of the management company at Belarmine Plaza, where Ms O'Hara lived, gave evidence that there were no issues with the CCTV between January and August 2012.

The jury has been shown a montage of footage purporting to show Ms O'Hara and her alleged killer Mr Dwyer entering and exiting the complex during this timespan.

We have also heard about a spade found by gardaí near Ms O'Hara's remains in Killakee, and from a doctor at St Edmondsbury psychiatric hospital where the childcare worker was styaing in the weeks before her alleged murder.

He did not treat her - but he did give her a prescription on her discharge.