Police say they’re on the case after a string of burglaries in the Grovehill and Woodhall Farm areas of Hemel Hempstead.
But they want people to ensure their homes are secure to stop thieves from taking advantage of easy targets.
There were five burglaries in Grovehill between September 19 and October 9 and two in Woodhall Farm – both carried out on October 8.
Det Insp Justine Jenkins said: “All of these incidents are being thoroughly investigated and we believe some of these crimes are linked.
“I’d like to reassure people that we have made three arrests over the weekend in relation to two burglaries in Grovehill.
“I’d also reassure people that all crime, including burglary, has greatly reduced in Dacorum. However, it is important that people leave their properties locked and secure to prevent becoming a victim.”
In Grovehill homes and sheds in Wootton Drive, St Agnells Lane, Tresilian Square, Isenburg Way and Hunting Gate have been targeted and in Woohall Farm a home in Blair Close and Latimer Close were hit. Police have released images of jewellery snatched during the Hunting Gate raid, which happened on Wednesday, October 9 between 7.30am and 6pm.
Det Insp Jenkins said: “I’d also encourage people to look out for suspicious activity and if you believe you see someone acting suspiciously I would encourage you to report it to police immediately. You could help us apprehend criminals.”
Three Luton men were arrested on Saturday on suspicion of conspiracy to commit burglary in connection with two Grovehill break-ins on October 5.
They have been police bailed until November 7.