On Thursday, more than hundred armed policemen accompanied the five accused arrested in the Dhaula Kuan gangrape case to Mewat in search of evidence.
The police also recovered the country-made pistol used in the crime from the house of one of the accused.
The Delhi Police have often been at the receiving end and faced severe backlash whenever they went to the Mewat region to apprehend any accused.
"A 120-strong police team armed with sophisticated weapons and bullet-proof jackets was sent to the village to recover evidence such as the weapon used and the clothes the accused were wearing at the time of incident," said a senior police officer.
The country-made pistol was recovered from the house of Usman alias Kale at Mirpur village near Faridabad.
The five accused identified as Shamshad alias Khutkan, Usman alias Kale, Shahid alias Choti Billi, Kamruddin alias Mobile and Iqbal alias Bada Billi are currently in five-day police custody.
"The team was sent to ensure that we do not face any problem in case of any resistance," said HGS Dhaliwal, deputy commissioner of police (south).
The police said they were yet to recover the mattress used in the crime.
"We interrogated all the five accused together to know the exact sequence of events," said the officer. The victim identified two of the five accused during an identification parade last Saturday. Three other accused have refused the test identification parade.
The police said the initial questioning of the two accused in their custody revealed that they could be involved in similar cases in Delhi and adjoining areas such as Noida, Gurgaon, Ghaziabad and Faridabad.
Earlier, a team of 380 policemen was sent to Dhauj village to arrest the accused.