Personnel File

Tim Gruenke

Content referencing Tim Gruenke

Flawed Hair Analysis Wrongly Imprisons Many

Flawed Hair Analysis Wrongly Imprisons Many

WCIJ finds nine cases in Wisconsin, among hundreds nationally.

Flawed Hair Evidence Convicts the Innocent

Flawed Hair Evidence Convicts the Innocent

FBI admits errors in 90 percent of hair and fiber cases, including 13 in Wisconsin.