Campus Safety & Security

The Denison ISD Clear Bag Policy, in conjunction with Denison ISD Board of Trustees policy, and University Interscholastic League (UIL) guidelines, applies to all events and activities held at Denison ISD facilities including athletic events and other ticketed events. All bags are subject to search. Exceptions to this policy may be made by Denison ISD Administration prior to the event date for medically-necessary items. For events held at all Denison ISD facilities, patrons are subject to a security check at the gate upon entry, and a strict no re-entry policy will be enforced. CLICK HERE to view the complete policy.

Denison ISD uses the Raptor Visitor Management System in our school(s). Raptor is used to track visitors, volunteers and vendors who come into our schools.  Computer kiosks are installed on all campuses at the main entrances for visitors to sign-in electronically. All visitors are required to sign-in to the building via Raptor.  Visitors will be required to scan their drivers license as part of this process.  Following the sign-in process a visitor badge will be printed and must be worn at all times while on school property.  The badge is self-adhesive and will not damage clothing. Prior to leaving the school all visitors must sign-out out using the Raptor system.  Front office staff will be available to answer questions and provide assistance as needed.

Surveillance cameras are in operation inside and outside the all DISD campuses.

Should an immediate emergency situation arise on a campus, parents/guardians will be notified via a mass calling system. In order to be appropriately notified, parents and guardians must ensure that Denison ISD has current and accurate contact information on all students. Parents may also be notified by viewing the scrolling alert at the top of the Denison ISD website.​

Ensuring the safety of our Yellow Jacket students and staff is our main priority during a weather event. Denison ISD monitors the National Weather Service and local meteorologist forecasts before making decisions to close, dismiss early or delay school.

Factors considered before making a weather-related decision about school include:

• road conditions, temperatures
• the presence of snow, ice, and sleet
• bus route rider and driver safety
• teen driver safety
• sidewalk and parking lot conditions
• staff driver safety
• the conditions of our facilities District

The Denison ISD website is the OFFICIAL notification location regarding inclement weather cancellations or delays. In the event that the district closes, dismisses early or delays school for weather-related issues, local television and radio stations will be notified by the district. Campus Facebook pages and district Twitter (Denison ISD @denisonISD or DISD Communications @DISD_PR_COMM) accounts may also be utilized forms of communication for Denison ISD. Social media is a great way to connect and interact with our students online.

Texas School Safety Center Winter Storm Definitions

Freezing Rain – Freezing rain occurs when snowflakes descend into a warmer layer of air and melt completely. When these liquid water drops fall through another thin layer of freezing air just above the surface, they don't have enough time to refreeze before reaching the ground. Because they are “supercooled,” they instantly refreeze upon contact with anything that is at or below 0 degrees Celsius, creating a glaze of ice on the ground, trees, power lines, or other objects. A significant accumulation of freezing rain lasting several hours or more is called an ice storm.

Ice Storm – A storm that results in the accumulation of at least 0.25” of ice on exposed surfaces. The conditions related to an ice storm can create hazardous driving and walking conditions. Tree branches and powerlines can easily snap under the weight of the ice.

Sleet – Sleet occurs when snowflakes only partially melt as they fall through a shallow layer of warm air. These slushy drops refreeze as they next fall through a deep layer of freezing air above the surface and eventually reach the ground as frozen raindrops.

Snow – Most precipitation that forms in wintertime clouds starts out as snow because the top layer of the storm is usually cold enough to create snowflakes. Snowflakes are collections of ice crystals that cling to each other as they fall toward the ground. Precipitation continues to fall as snow when the temperature remains at or below 0 degrees Celsius from the cloud base to the ground.

Wind Chill – Wind chill is the term used to describe the rate of heat loss from the human body resulting from the combined effect of low temperature and wind. As winds increase, heat is carried away from the body at a faster rate, driving down both the skin temperature and eventually the internal body temperature.

 Winter Storm – A winter storm is a combination of heavy snow, blowing snow, sleet, freezing rain, and/or dangerous wind chills. A winter storm can be life-threatening according to the National Weather Service.

Winter Storm Warning – Issued when a combination of hazardous winter weather in the form of heavy snow, heavy freezing rain, or heavy sleet is imminent or occurring.