Jason Morris, 38, Stephen Booth, 34, and John Phillips, 28, have each been convicted of robbery.
Citing "extremely tough" financial conditions, the Deputy Chief Constable of Gwent Police says training and facilities can be shared more.
Gwent Police have introduced 5 new 'mobile police stations' to cut costs.
The family of missing Newbridge man Kyle Vaughan are appealing for witnesses to come forward to help them find him.
The 24-year-old hasn't been seen since the end of December. Police are treating his disappearance as a murder investigation.
Kyle's cousin Beckie Imm told ITV Wales: "It's really important that people pick up the phone and let [the police] know of any information that might be relevant."
Officers investigating the disappearance of 24-year-old Kyle Vaughan from Newbridge say they've arrested two more people.
A 27-year-old woman and a 28-year-old man, both from the Cwmfelinfach area, have been arrested on suspicion of murder.
Senior investigating officer Detective Superintendent Peter Jones said: "Eight people have been arrested during the course of the investigation.
"We are committed to finding out what happened to Kyle that night and since - and we wont stop until all avenues and lines of enquiry have been exhausted."
A 24-year-old man arrested on suspicion of the murder of missing Newbridge man Kyle Vaughan has been released on bail.
The man, from the Blackwood area, was arrested on Friday.
A 22-year-old woman from Newbridge, who was arrested on suspicion of perverting the course of justice, has also been released on bail.
Mr Vaughan, 24, was last seen on December 30th.
Gwent Police confirm they have arrested a 22-year-old woman from Newbridge on suspicion of perverting the course of justice.
Detectives investigating the disappearance of 24-year-old Kyle Vaughan from Newbridge have arrested a 24 year old man from the Blackwood area on suspicion of murder.
Kyle was last seen on December 30th. Yesterday, his family made an appeal for information concerning his whereabouts.
– Detective Superintendent Peter Jones, Gwent Police
We want to reassure people that we continuing to make every effort to locate Kyle and to investigate the circumstances surrounding his disappearance.
Family liaison officers are continuing to provide Kyle's family with support at this very difficult and upsetting time.
I'm urging anyone who has any information about Kyle's disappearance, no matter how unimportant it may seem, to contact Gwent Police on 101. Information can also be passed on with complete anonymity via Crimestoppers on 0800 555111.
A woman has been charged with assisting a convicted murderer to escape from Prescoed Prison in Monmouthshire.
26-year-old Brian Grady absconded on Monday and a 34-year-old woman and 37-year-old man were arrested in Bristol. The woman will appear in Caerphilly Magistrates Court today.
The man arrested was released without charge. Grady, also known as Brian Revill, is still missing. He is described as white, 5ft 11ins, of medium build, with short light brown hair and blue eyes. He has a scar under his left eye and speaks with a Bristol accent.
– Alan Vaughan and Mary Lucas, Kyle Vaughan's parents
Our lives have been on hold since 30th December and every day since then we have lived in hope that he will walk through the door. It’s been a painstaking time for us while we wait on news that our boy is safe.
For Kyle to go missing is totally out of character. He would always be in contact with his mother every day and now we are heartbroken.
We feel there are people out there who could hold information that is vital to this inquiry. It’s also possible that there are people who know what’s happened to Kyle but are too scared to come forward.
– Karl Sheahan, brother
We feel numb and are sick with worry about what might have happened to him. We were in total shock when we were told that our son and brother, was feared dead.
It’s been an unbearable strain on us as a family and we would urge anyone who can help end this nightmare to come forward.
A man arrested on suspicion of murdering Kyle Vaughan from Caerphilly in south Wales has been realised from police custody.
The 24-year-old was last seen at his home in Newbridge on December 30 and is now assumed dead.
A 27-year-old man, also from Newbridge, was arrested on Thursday and has been questioned by police since then.
Detectives have also released two other people on bail pending further inquiries -a man, 21, from Newbridge, and the boy, 15, from Abercarn, held on suspicion of assisting an offender.
Their release comes after a 62-year-old Newbridge man was arrested on Saturday on suspicion of perverting the course of justice and later released on bail.
Detectives are continuing to investigate Mr Vaughan's disappearance.
Police family liaison officers were providing support to the missing man's family after they were told last week he is now presumed dead.
They also appealed to the public for any information regarding Mr Vaughan's disappearance.
Concern had been rising for his welfare, as he suffers from diabetes and requires regular insulin injections, for some time.
A Gwent Police spokesperson said it is believed Kyle was last seen on the A467 between Risca and Crosskeys, "some time between 11pm and 11.45pm on December 30th 2012."
They added: "It is believed he was wearing a dark coloured beanie hat, a dark coloured t-shirt, three quarter length denim shorts, white trainers and a gold chain.
"On the same night at approximately 11.45pm, officers found Kyle's car, a silver Peugeot 306, which had been involved in a collision."
Specialist officers have been brought in as part of a major search operation focusing on several areas.
The missing man inquiry had been upgraded to a murder investigation on Friday after the arrest of the 27-year-old man on suspicion of murder.
But despite a nationwide police appeal and a growing online information campaign the whereabouts of the former Cwmcarn High School pupil remain a mystery.
Unilever worker Mr Vaughan is described as 5ft 8ins, of slim build, with short dark hair, and brown eyes.
He was known to wear a gold neck chain with a cross, has a distinctive tattoo of a pair of flaming dice on his inner left forearm and tattoos on his right leg.
Anyone with information should call 101 or Crimestoppers anonymously on 0800 555111.
Gwent Police has released new pictures of missing Newbridge man Kyle Vaughan and his car, and reiterated its appeal for information.
The last reported sighting of the 24-year-old was on the A467, between Risca and Crosskeys, between 11pm and 11.45pm on Wednesday 30 December 2012. It's believed he was wearing a dark coloured beanie hat, a dark coloured t-shirt, denim shorts, white trainers and a gold chain.
A 27-year-old man arrested on suspicion of murder, and a 21-year-old man and 15-year-old boy both arrested on suspicion of assisting an offender remain in police custody.
Officers are appealing for anyone with information to contact them.
Detectives investigating the disappearance of Kyle Vaughan have arrested a 15-year-old boy from Abercarn on suspicion of assisting an offender.
A 21-year-old man from Newbridge arrested yesterday on suspicion of assisting an offender remains in police custody assisting officers with their enquiries.
Gwent Police has been granted a warrant to further detain the 27-year-old man arrested on suspicion of murder on Thursday following the disappearance of Kyle Vaughan. A 24-hour warrant of further detention was granted by Caerphilly Magistrates Court.