Tuesday marks three months since the violent insurrection at the U.S. Capitol and talks are continuing about how to improve security.
More than 300 people have been charged in connection with the Jan. 6 insurrection so far.
Friday’s deadly attack outside the Capitol that killed U.S. Capitol Police Officer William Evans and injured another has only heightened concerns.
Officer Brian Sicknick died after injuries he sustained from responding to the insurrection, according to police.
Read More Evans was the second USCP officer to be killed this year.
“January 6th was absolutely disheartening,’ said Joshua Skule, Senior Vice President for Allied Universal and retired FBI agent with more than two decades with the bureau.
[ Security concerns at U.S. Capitol grow after deadly attack killed USCP officer ]
Skule said it’s critical for law enforcement to have enough resources to respond to these kind of attacks.
The head of the Capitol Police union has said the department is significantly short-staffed.
“Getting to the recommended staffing level to make sure that they can cover all the security vulnerabilities that exist at the Capitol are essential,” Skule said.
[ Capitol attack raises questions of security vs public access ]
Lawmakers are now weighing the balance between security and liberty, looking into whether physical barriers like the fencing and concrete barricades are needed in the long-run.
Some of the National Guard presence and the fencing put in place after the insurrection had been scaled back before Friday’s attack.
Skule is urging law enforcement to continue to evaluate crisis planning.
“Have you done an after action to see whether or not you, whether private or public, would have been able to sufficiently communicate, convey the threat information, evacuate personnel where appropriate, have the right security resources in place?” Skule said. “I think all of that is something that is frankly more important today than we have seen in recent history with all that’s going on.”
Damage seen in aftermath of US Capitol riot Broken windows at an entrance to the U.S. Capitol building in Washington, D.C., U.S., on Thursday, Jan. 7, 2021. Joe Biden was formally recognized by Congress as the next U.S. president early Thursday, ending two months of failed challenges by his predecessor, Donald Trump, that exploded into violence at the U.S. Capitol as lawmakers met to ratify the election result. (Graeme Sloan/Bloomberg via Getty Images)
Damage seen in aftermath of US Capitol riot A security checkpoint desk covered in dust at the U.S. Capitol building in Washington, D.C., U.S., on Thursday, Jan. 7, 2021. Joe Biden was formally recognized by Congress as the next U.S. president early Thursday, ending two months of failed challenges by his predecessor, Donald Trump, that exploded into violence at the U.S. Capitol as lawmakers met to ratify the election result. (Graeme Sloan/Bloomberg via Getty Images)
Damage seen in aftermath of US Capitol riot The sign in front of the office of Speaker of the House Nancy Pelosi, D-Calif., is damaged as seen in the early morning hours at the Capitol in Washington, Thursday, Jan. 7, 2021, after protesters stormed the Capitol. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot A ceremonial door to the U.S. Capitol behind broken glass in Washington, D.C., U.S., on Thursday, Jan. 7, 2021. Joe Biden was formally recognized by Congress as the next U.S. president early Thursday, ending two months of failed challenges by his predecessor, Donald Trump, that exploded into violence at the U.S. Capitol as lawmakers met to ratify the election result. (Graeme Sloan/Bloomberg via Getty Images)
Damage seen in aftermath of US Capitol riot An ATF police officer cleans up debris and personal belongings strewn across the floor of the Rotunda in the early morning hours of Thursday, Jan. 7, 2021, after protesters stormed the Capitol in Washington, on Wednesday. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot Members of U.S. Capitol Police inspect a damaged entrance of the U.S. Capitol on January 7, 2021, in Washington, DC. The U.S. Congress has finished the certification for President-elect Joe Biden and Vice President-elect Kamala Harris’ electoral college win after pro-Trump mobs stormed the Capitol and temporarily stopped the process. (Alex Wong/Getty Images)
Damage seen in aftermath of US Capitol riot A man takes a photo of broken windows near the Rotunda in the early morning hours of Thursday, Jan. 7, 2021, after protesters stormed the Capitol in Washington, on Wednesday. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot Dust and a gas mask are visible on the ground in the early morning hours of Thursday, Jan. 7, 2021, after protesters stormed the Capitol in Washington, on Wednesday. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot A worker pushes a trash bin at the U.S. Capitol building in Washington, D.C., U.S., on Thursday, Jan. 7, 2021. Joe Biden was formally recognized by Congress as the next U.S. president early Thursday, ending two months of failed challenges by his predecessor, Donald Trump, that exploded into violence at the U.S. Capitol as lawmakers met to ratify the election result. (Graeme Sloan/Bloomberg via Getty Images)
Damage seen in aftermath of US Capitol riot Police officers walk through the Capitol in the early morning hours of Thursday, Jan. 7, 2021, after protesters stormed the Capitol in Washington, on Wednesday. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot Workers clear trash from the East Front of the U.S. Capitol building in Washington, D.C., U.S., on Thursday, Jan. 7, 2021. Joe Biden was formally recognized by Congress as the next U.S. president early Thursday, ending two months of failed challenges by his predecessor, Donald Trump, that exploded into violence at the U.S. Capitol as lawmakers met to ratify the election result. (Graeme Sloan/Bloomberg via Getty Images)
Damage seen in aftermath of US Capitol riot An ATF police officer cleans up debris and personal belongings strewn across the floor of the Rotunda in the early morning hours of Thursday, Jan. 7, 2021, after protesters stormed the Capitol in Washington, on Wednesday. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot Debris and personal belongings are strewn across the floor of the Rotunda in the early morning hours after protesters stormed the Capitol on Wednesday in Washington, Thursday, Jan. 7, 2021. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot Rep. Andy Kim, D-N.J., cleans up debris and trash strewn across the floor in the early morning hours of Thursday, Jan. 7, 2021, after protesters stormed the Capitol in Washington, on Wednesday. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot A worker cleans a copy of the Declaration of Independence at the U.S. Capitol building in Washington, D.C., U.S., on Thursday, Jan. 7, 2021. Joe Biden was formally recognized by Congress as the next U.S. president early Thursday, ending two months of failed challenges by his predecessor, Donald Trump, that exploded into violence at the U.S. Capitol as lawmakers met to ratify the election result. (Graeme Sloan/Bloomberg via Getty Images)
Damage seen in aftermath of US Capitol riot Rep. Andy Kim, D-N.J., helps ATF police officers clean up debris and personal belongings strewn across the floor of the Rotunda in the early morning hours of Thursday, Jan. 7, 2021, after protesters stormed the Capitol in Washington, on Wednesday. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot A worker removes a Trump scarf from the East Front of the U.S. Capitol building in Washington, D.C., U.S., on Thursday, Jan. 7, 2021. Joe Biden was formally recognized by Congress as the next U.S. president early Thursday, ending two months of failed challenges by his predecessor, Donald Trump, that exploded into violence at the U.S. Capitol as lawmakers met to ratify the election result. (Graeme Sloan/Bloomberg via Getty Images)
Damage seen in aftermath of US Capitol riot Workers clean an office at the U.S. Capitol building in Washington, D.C., U.S., on Thursday, Jan. 7, 2021. Joe Biden was formally recognized by Congress as the next U.S. president early Thursday, ending two months of failed challenges by his predecessor, Donald Trump, that exploded into violence at the U.S. Capitol as lawmakers met to ratify the election result. (Graeme Sloan/Bloomberg via Getty Images)
Damage seen in aftermath of US Capitol riot Broken glass lay on the floor inside the U.S. Capitol in Washington D.C., U.S., on Wednesday, Jan. 6, 2021. The House and Senate resumed a politically charged debate over the legitimacy of the presidential election hours after a pro-Trump mob stormed the U.S. Capitol and drove lawmakers from their chambers. (Erin Scott/Bloomberg via Getty Images)
Damage seen in aftermath of US Capitol riot Rep. Andy Kim, D-N.J., helps ATF police officers clean up debris and personal belongings strewn across the floor of the Rotunda in the early morning hours of Thursday, Jan. 7, 2021, after protesters stormed the Capitol in Washington, on Wednesday. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot Overturned furniture and broken glass litter a hallway of the US Capitol in Washington, DC, on January 7, 2021, one day after supporters of outgoing President Donald Trump stormed the building. (Nicholas Kamm/AFP via Getty Images)
Damage seen in aftermath of US Capitol riot Chemical irritant canisters at a security checkpoint desk covered in dust at the U.S. Capitol building in Washington, D.C., U.S., on Thursday, Jan. 7, 2021. Joe Biden was formally recognized by Congress as the next U.S. president early Thursday, ending two months of failed challenges by his predecessor, Donald Trump, that exploded into violence at the U.S. Capitol as lawmakers met to ratify the election result. (Graeme Sloan/Bloomberg via Getty Images)
Damage seen in aftermath of US Capitol riot Sen. Tim Scott, R-S.C., stops to look at damage in the early morning hours of Thursday, Jan. 7, 2021, after protesters stormed the Capitol in Washington, on Wednesday. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot Capitol workers remove damaged furniture on the first floor of the Senate side of the U.S. Capitol on Thursday morning, January 7, 2021, following the riot at the Capitol the day before. (Bill Clark/CQ-Roll Call, Inc via Getty Imag)
Damage seen in aftermath of US Capitol riot Sen. Tim Scott, R-S.C., second from left, walks past damage in the early morning hours of Thursday, Jan. 7, 2021, after protesters stormed the Capitol in Washington, on Wednesday. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot A flag that reads "Treason" is visible on the ground in the early morning hours of Thursday, Jan. 7, 2021, after protesters stormed the Capitol in Washington, on Wednesday. (Andrew Harnik/AP)
Damage seen in aftermath of US Capitol riot Broken furniture and shattered glass at the U.S. Capitol building in Washington, D.C., U.S., on Thursday, Jan. 7, 2021. Joe Biden was formally recognized by Congress as the next U.S. president early Thursday, ending two months of failed challenges by his predecessor, Donald Trump, that exploded into violence at the U.S. Capitol as lawmakers met to ratify the election result. (Graeme Sloan/Bloomberg via Getty Images)
Damage seen in aftermath of US Capitol riot Capitol workers remove damaged furniture on the first floor of the Senate side of the U.S. Capitol on Thursday morning, January 7, 2021, following the riot at the Capitol the day before. (Bill Clark/CQ-Roll Call, Inc via Getty Imag)
Damage seen in aftermath of US Capitol riot A discarded Gadsden flag inside the U.S. Capitol in Washington D.C., U.S., on Wednesday, Jan. 6, 2021. The House and Senate resumed a politically charged debate over the legitimacy of the presidential election hours after a pro-Trump mob stormed the U.S. Capitol and drove lawmakers from their chambers. (Erin Scott/Bloomberg via Getty Images)
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