Cambridge police used pepper spray twice in August, with different responses to inquiries about the incidents.
In one case, residents were forced from their homes after police used the chemical to dislodge a suspect, but the attempt was unsuccessful.
Police commissioner Christine Elow said police wouldn’t use the chemical again in a similar situation.
In another incident, a Harvard Square demonstration against Israel’s war in Gaza, police arrested three people on charges including disorderly conduct and throwing an explosive substance.
Author's summary: Cambridge police face questions over protest handling.