Referencing the Malaysia police to population ratio:
Malaysia is at 370 police officers per 100,000 people. That is 1 police per 270 people. Sort the table at the site and you will see our number is higher than 1st world countries like New Zealand (247), Australia (217), France (356), Germany (296), England & Wales (237). Brunei is at 1076 and Singapore is at 752 which is way higher than ours but it's a small country. So does that mean we need to increase the number of police to lower crime rates? Then the next question is, who will police the police?
Anyway, it is always good to work with your neighbors to deter break-ins at your area. One can only do so much to protect/reinforce the security of your own place. But if we can work in small groups to look out for each other in example a row of back-to-back terrace house to prevent easy access to the back lane, I believe we can put these guys in check. For starters, one of the way to deter the culprits is to hang a large sign saying "Perhatian! Ini lorong ada CCTV!" at the entrance or exit of the back lane. I know it won't prevent physical break-ins, but it would certainly get them to think about a higher chance of them getting caught and the folks here are already aware of this route which may already have traps and barriers in place to stop them.