Comical images show a male officer grappling with the swan as it was carried away before being handed over to the RSPCA on Wednesday (19/1).
Charnwood Police tweeted: "Our very own Swan whisperer has saved this beautiful creature from serious harm today. The life of an NPO officer is always very varied."
A Leicestershire Police spokesperson added: "The swan was seen by officers close to the road while driving along Leicester Road in Loughborough, close to the junction with Beeches Road.
"They believed the swan to be injured, so stopped. It has since been handed over to the RSPCA."
A spokesperson for the RSPCA said: “An RSPCA officer collected this juvenile swan who was believed to have been exhausted after being chased by other adult swans protecting their territory.
“He was checked over and later released to a safe spot.
“We are grateful to everyone who was involved in helping the swan.
“The swan happily swam off when released, and started looking for new friends.”