If the Little Rock City Council wanted to ban cop-killer bullets in the face of increasing gang activity, I thought they should have the right to do so.

如果小石城议会打算严禁使用可以穿透防弹衣的子弹，以应对越来越猖獗的帮会活动，我认为他们应该有权这样做。

youdao

Martinez says arrests are up because federal payouts have boosted police programs targeting illegal guns, drugs and gang activity.

VOA: standard.2009.05.22

They have nothing. They are just hoping for something,". Asked about the security situation in Port-au-Prince, U.S.General Ken Keen noted that gang activity and lawlessness existed in Haiti before the earthquake.

VOA: standard.2010.01.18

El Salvador and Honduras where gang activity is strong will soon follow the Guatemalan model.

CENTERFORSECURITYPOLICY: Guatemala: A security challenge

Chicago schools suffer, in heavy doses, all the ills of urban school districts: poverty, gang activity and teen pregnancies.

FORBES: Chain Saw Paul

As part of the Safer Lanarkshire campaign, additional officers will target known trouble spots aiming to disrupt gang activity and disorder.

BBC: Blitz against booze-related crime