The Justice Department arrested the South Poverty Law Center’s former chief financial officer, Heidi Beirich, on Wednesday. Federal prosecutors charged her with conspiracy to commit wire fraud, conspiracy to submit false statements to a federally insured bank and conspiracy to commit concealment money laundering. Back in April, the Justice Department had charged the SPLC over its now-defunct program in which it paid informants to infiltrate white supremacist groups.

Beirich’s lawyer said in a statement, “A free and fair society does not use the justice system to silence its political opponents. Heidi Beirich has dedicated her life to fighting hate groups and extremist movements like the KKK, neo-Nazis, and other white supremacists. … Her decades-long record of success dismantling hate groups — and the resulting threats to her life — speak volumes. For this, she has been indicted.”