There has been a spate of burglaries in Downend in which thieves have reached in through a cat flap to get the key and unlock the door.
And police horses have been patrolling in Kingswood today to help tackle a recent issue with daytime burglaries in the town.
The three break-ins in Downend have all been between midnight and 2.30am.
In one incident, on Thursday 26th June, the offenders made off empty-handed after setting off a motion-sensing alarm at about 2.30am.
In the other two cases, on Tuesday 27th May and Tuesday 1st July, the thieves were able to steal wallets or handbags containing cash and bank cards and also took mobile phones and laptop computers.
Neighbourhood PC James Rochford said: “We have been carrying out door-to-door inquiries and crime scene investigations and are targeting our patrols to tackle this unusual level of criminal activity.
“This sort of burglary can be prevented by making sure the keys are removed from the door and put safely out of view and reach.
“It’s also a good idea to install tracking software on smart phones, tablets and laptop computers and to register property for free on www.immobilise.com.
“There’s more home security advice on our website, www.avonandsomerset.police.uk.
“If you have any information which could help our investigations, please get in touch through the website or by calling 101 or independent charity Crimestoppers on 0800 555 111.”
Meanwhile in Kingswood there have been six burglaries reported since last Friday, most happening between 1pm and 3.30pm.
Thieves have been smashing patio doors to get into homes and stealing televisions, jewellery, cash and tablet and laptop computers.
Police have been carrying out targeted patrols – including drafting in the horses – and have sent information out to local Neighbourhood Watch groups.
Neighbourhood PC Nick Smart said: “The most important message for local people is to call 999 immediately if they see someone acting suspiciously around neighbours’ homes.
“It’s also a good idea to make sure your back garden boundary is secure, with good quality locks on gates. Prickly plants along fences, walls and hedges will help to deter people from climbing over.”