This is from The New York Times article.
“Operating in riverine environment, on horseback, is a difficult situation,” he said, adding that agents used reins to try to control horses so that they did not inadvertently injure migrants. He said the actions of one agent on horseback, who appeared to be spinning his reins like a lasso as he loomed over a group in the water, were most likely related to that challenge.
“But we will certainly look into the matter,” Chief Ortiz added, “to make sure that we do not have any activity that could be construed as a response to a law enforcement effort that is unacceptable.”
'A response to' seems to connote an action "of migrants" in response to an unacceptable law enforcement effort but Ortiz is meaning they will make sure that they don't have any "their" activity that could be regarded as unacceptable.
So I think 'a response to' is inappropriate in this context.
Am I wrong?