(CNN) - House Homeland Security Chairman Michael McCaul said stopping questioning to read surviving Boston Marathon bombing suspect Dzhokhar Tsarnaev his Miranda rights may have kept investigators from getting valuable intelligence.
McCaul, R-Texas, said the complaint could have been filed later and suggested a change in the Miranda laws allowing American citizens accused of terrorist activities to be questioned for at least 48 hours.
"Having been a federal prosecutor, I think this rush to Mirandize cost us valuable intelligence in terms of other plots that may be out there," McCaul told reporters on Capitol Hill on Friday. "Remember that before he's Mirandized, he does discuss the fact that he's going to Times Square to detonate these other IEDs that were found in his older brother's apartment.
"The only other avenue we had to get this intelligence is through this emergency exception to the Miranda warning," he said. "But in my judgment, the FBI was cut short in their interrogations when the magistrate judge decided to Mirandize him within 16 hours, particularly given this condition of health that the defendant [is] in, and so I think that cost us dearly in terms of valuable intelligence."
Dzhokhar Tsarneav and his brother Tamerlan Tsarneav - who was killed in a shootout with police - are accused of planting and detonating two bombs at the Boston Marathon earlier this month. Four were killed and hundreds were injured.
When Dzhokhar Tsarneav was captured, authorities indicated they did not intend to read him his Miranda rights, invoking the public safety exception to the law. After a 16-hour interrogation, the suspect was read his rights and stopped cooperating.
House Intelligence Chairman Mike Rogers, R-Michigan, also criticized the decision to read Tsarneav his Miranda rights.
"That is highly unusual for a judge to intervene so hastily and make the decision not based on the facts of the interviews and the public safety exception, but what they have perceived was happening based on what they saw on television," Rogers said Thursday on "The Situation Room" with Wolf Blitzer. "It's dangerous. It's precedent setting that I think we need to change and correct right away.
"We still need more answers on this particular question. Once they walked into the hospital room, and offered the lawyer and Mirandized, they hadn't - as sure as I'm standing here right now. It certainly would make it a plausible thing to have happen but it's more plausible to me they were going to do another event in the Boston area, and hiding out in New York City was their plan."
–CNN's Todd Leopold and Deirdre Walsh contributed to this report.