Can an Infrared Thermometer measure through glass?

I work for a local police department and we need an instrument that can measure the inside temperature of a parked car without actually getting into the car. We need this for our animal control officer, so he can determine if the inside temperature of the car is dangerous for an animal locked inside the car. It would be great to able to get a quick reading before we break out a window.

Infrared thermometers are great diagnostic tools but they do have their limitations. An infrared thermometer measures surface temperature on the object your are pointing the infrared beam onto. The infrared thermometer cannot penetrate glass and give an interior temperature reading of a car. Even if you aim the beam on the roof it will only be giving you a reading of the surface temperature of the metal surface. The only way to get an accurate reading is to insert a thermometer directly into the car.