Security Business

JUL 2019

Find news and information for the executive corporate security director, CSO, facility manager and assets protection manager on issues of policy, products, incidents, risk management, threat assessments and preparedness.

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JULY/AUGUST 2019 | ACCESS CONTROL Trends And Technology S19 4 Levels of Security that Impact the Bottom Line When considering security entrances as part of your security plan, the first step is to learn about the different levels of security they provide in terms of mitigating intrusion. Essentially, they protect a facility at four levels, all of which relate to the number of people who can enter at once: crowd control, deter, detect, and finally, detect and prevent. These levels ultimately have an impact on the bottom line, which we will discuss later in this article. Level 1: Crowd Control – Crowd control simply limits the number of individuals who can enter at any one time. Waist-high tripod turnstiles, for example, only allow one person to enter at a time; however, it is possible for someone to climb or jump over the turnstile to enter. They do not have any sensors or alarms to detect and alert staff when intrusion attempts happen. They are typically used in locations that are less secure, or which are well-manned by individuals checking the identification of each person trying to enter. The next three levels – deter, detect, and detect and prevent – relate to the issue of tailgating, or a second person entering on the same ID verification as another person. Some security entrances can deter tailgating, some detect when it does happen, and others actually go as far as to prevent it from happening in the first place. Level 2: Deterrence -- A full height turnstile, due to its height of over 7 feet, is designed to deter intrusion attempts. Its basic construction and robust design make it a favorite of exterior, fence line applications. Its working principle allows one person at a time to enter on a valid authorization. While it cannot be jumped over, a full height turnstile does not have any sensors to detect the presence of people or objects: this means that two determined (and relatively slender) individuals could go through together in the space designed for a single person (otherwise known as “piggybacking”). Therefore, full height turnstiles are usually the first layer of defense, relegated to the fence line with video cameras. If they are installed inside a building, supervision by security staff is strongly recommended due to the possibility of piggybacking. Level 3: Detection -- The next level, detection, is represented by optical turnstiles, which provide a meaningful difference beyond deterrence. These entrances are always intended to be used inside, typically in a lobby for allowing employees and registered visitors to enter. They include sophisticated sensor technology that enable them to detect when someone passes through the entrance, along with how many individuals move through on a single authorization. When someone tailgates behind an authorized user, the turnstile issues an audible alarm to alert security staff to intervene quickly. Since optical turnstiles cannot prevent someone from tailgating, it is strongly recommended that security staff be present at all times. This has a great impact on the true cost of this solution year-over-year. Level 4: Detection and Prevention -- Finally, the highest level of security entrances, which can detect and also prevent tailgating and piggybacking completely, includes security revolving doors and mantrap portals. Because they are so good at identifying an intruder and rebuffing them, these types of sophisticated doors do not require any supervision. This potentially creates a rapid return on investment. Now that we have reviewed the four levels of security that are provided by security entrances, you can see the breakdown in Figure 1 below: Examining the True Cost Differences When it comes to looking at the cost differences between these four levels of security entrances, it is essential to compare and consider all the associated costs that you will incur when each type is installed and beyond. As stated earlier, in each of the first three security levels you will likely need to hire security personnel in order to prevent tailgating or other unauthorized intrusions from happening (the

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