Ghaziabad: Considerable time lag in handing over cases to the CBI makes the agency's work to collect evidence difficult, CBI Director A P Singh said on Friday while addressing a passing out parade of 15th batch of sub-inspector trainees.

The agency chief, while addressing newly inducted 72 cadets and their families, said the CBI is not first responder in many cases making it impossible some times to collect evidence.

"The CBI is not first responder and is generally given the task of investigating and prosecuting a case after a considerable lapse of time since the time offence was committed.

"It becomes not only difficult but sometimes impossible to collect evidence. Therefore, only a scientific recourse to investigation will take it to its logical conclusion," Singh said.

He advised the new recruits that they need to constantly upgrade their skills and knowledge of legal procedures, laws of the land and scientific aids to investigation.

"Advanced training allows police officers to better serve the communities they work in, and to retain their edge as law enforcement professionals.

"This also keeps you abreast with the latest scientific tools to be used in investigation. An investigation done with scientific methodology can yield far better results and solve intricacies of crime," Singh said.

He also presented awards to meritorious cadets – Vijay Kumar Singh for overall best, Parveen for best Shooting, Rajan Chaudhary for best in sports, Ranu Chaudhary for Best indoor and best in Law, Udai Singh Gurjar for Best outdoor and Vivek Chaudhary for cyber crime.