Below are various links providing useful information on safety and security:
Improving Your Security and Safety
CMHC_Security_Safety
Apartment Building Security (Ontario Tenants)
http://www.ontariotenants.ca/apartment_living/security.phtml
Apartment building security (Toronto Police)
http://www.torontopolice.on.ca/crimeprevention/apartment.php
How to Improve the Security of Your Apartment
http://www.ehow.com/how-to_4845378_improve-security-apartment.html
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East York Tenants Group 
CCTV can help improve security if it is well planned and maintained. The crucial thing is monitoring though – will the cameras be monitored live or just recorded?If recorded then CCTV will only ever be a reactive tool.
There are video analysis systems out there that can privide some automation such as loitering, left objects etc. These systems are getting better and more reliable all the time.
Like most things though it all depends on the budget available.