We give all of our tenants a move in packet mostly with informational numbers (cable, fire, utility, police, etc) and a bunch of local businesses have coupons put in their packet as well.

Easy if there are bullet holes,yellow tape across properties,chalk outlines all over and people screaming than it's a war zone.You might want to check with local police and get a neighborhood crime report and check the statistics on the crime rate in the target property area.

However, our experience has been the tenant is more likely to bolt prematurely once they have been served notice.To start the eviction process (here a Notice to Vacate is served first) requires cause - missed rent, damage, disturbance complaints, police calls to unit, etc - and cannot simply be served/filed "in case" the tenant does not move at the end of her/his lease.Perhaps there is simply some loose terminology being communicated by the Vendor and s/he has simply served a Notice of Termination on the tenants.  

They have surpassed the per capita historical murder rate this year and are also planning budget cuts to the police and schools.

I believe as a landlord you can use a copy of a photo ID ,, drivers license to verify identiy of person living in unit / property.. you can ask to see ID at application time.. once you have completed application to ask for copy of photo ID for file I believe is not a discrimination, or fair housing issue because you did not use it to filter for application your use is strictly to verify identiy of tenant after the application was either denied or approved..It has been useful for myself in several instances when police where called to identify tenant

Next time your tenant complains about the noise tell them to call the police

She left and called the police. 

OMG...post police wouldn't let me add the phone numbers or addresses 

its a master plan  with community services fire station and police station. unclear who pays for those .. 

I just re-read their letter; it does advise to alert the police station closest to the property address.