Use of double cylinder dead bolts: (a) Require the use of key to exist for emergency exit (b) Impedes ingress in an emergency (c) Impedes egress in an emergency (d) Is a known safety practice to keep out burglars
1) Require the use of key to exist for emergency exit
2) Impedes ingress in an emergency
3) Impedes egress in an emergency
4) Is a known safety practice to keep out burglars