Ex-marine warned of self-harm if released from custody
He was found dead after seeking bail on national security charges
The inquest into the death of a former Royal Marine, Matthew Trickett, who was found dead while on bail for national security offences, has revealed he warned police he would harm himself upon being released from custody.
Trickett, a private investigator and Home Office immigration officer, tried to harm himself during his time in custody after his arrest, according to testimony at Berkshire Coroner's Court.
The 37-year-old advised police station staff that while he would not do so while detained, he would "at some point" after being freed.
Following his charge on 12th May 2024, Westminster Magistrates' Court bailed Trickett on 13th May, requiring him to stay at home between set hours.
Serco, tasked with fitting his electronic tag, reported to Thames Valley Police on 19th May that they were unable to monitor him.
While the police moved to arrest him, Trickett was not at home.
He was later discovered hanging in a park near Maidenhead, Berkshire.
Custody Sergeant Del May stated that Trickett showed no major medical or mental health issues upon arrival, requiring only minimal monitoring.
However, after consultations with his solicitor, an officer noticed Trickett "acting differently" in his cell.
Sergeant May recounted that Trickett had assured staff he would not harm himself while in custody, respecting and feeling well-treated by the police.
Observation levels were increased to "constant supervision" due to Trickett's expressed suicidal feelings.
Sergeant May noted that self-harm in custody occurs "fairly commonly."
At the inquest, senior coroner Heidi Connor questioned Sergeant May about Trickett's court appearance, asking if his comments indicated he should have been remanded for his own safety.
The inquest continues.