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DALLAS (CBSDFW.COM) – There are now estimates of what security upgrades at Dallas police headquarters will cost. The City of Dallas has laid out plans for beefing up building and police security after the attack at Jack Evans Police Headquarters in June.

A memo to city officials estimates $7 million will be needed to ramp up security at police headquarters and seven other city patrol stations.

Suggestions include adding bulletproof glass, more fencing and updating security systems. Assistant City Manager Eric Campbell says the cost will depend on what measures they can actually take. “Structurally the building can’t support some of that stuff, so we have to kind of take a step back and figure out what will and can’t work.”

Campbell said the City will set aside some money for the changes. He explained, “As we put the proposed budget together for next year… to have some funding available for those enhancements.”

The need for tighter security became an issue after James Boulware shot more than 40 bullets into police headquarters. He unleashed a barrage of gunfire at the building on on Lamar Street after driving up in an armored van.

Boulware was shot and killed by a police sniper after being cornered in a fast-food restaurant parking lot in Hutchins. No officers were injured.

The South Side on Lamar Apartments were evacuated after police found two explosive devices near DPD headquarters. One exploded when an ordinance robot attempted to move it; the other was found under a car in the parking lot of DPD headquarters and detonated by police.

Video above shows the suspect’s van being detonated.

The security upgrade recommendations and proposal will be presented next week.

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