A man has been sentenced to more than eight years in prison after hurling a corrosive substance at a 16-year-old boy in a brutal attack that left the teenager with serious injuries.
Gilson Martins, of Rochdale, was handed an eight-year and two-month prison term at Minshull Street Crown Court today (15 April 2025). The sentence covers a range of offences, including robbery, possession of a corrosive substance, witness intimidation, and unrelated drug offences from 2022.

Chilling Pre-Meditation
The court heard that on 24 March 2024, Martins discussed targeting the teenage victim before putting his plan into action. In a disturbing demonstration, Martins showed another man the potency of the corrosive liquid by pouring it onto a piece of paper, which was destroyed.
A few hours later, Martins and an accomplice lured the 16-year-old to an address in the Woodley area of Stockport. The victim was then subjected to a vicious attack, during which Martins threw the corrosive substance at him, causing significant physical harm and trauma.
Investigation and Sentencing
Martins was arrested after a swift police investigation, which uncovered evidence of the premeditated nature of the attack and efforts to intimidate witnesses.
Passing sentence, the judge described the assault as “calculated and extremely dangerous,” highlighting the lasting impact on the teenage victim.
Police Statement
A spokesperson for Greater Manchester Police said:
“This was a horrifying attack which has left a young man with life-changing injuries and a significant emotional burden. The use of corrosive substances in crime is utterly unacceptable, and today’s sentence reflects the seriousness of such offences. We hope this sends a clear message that we will not tolerate these acts in our communities.”
Support for Victims
Authorities are urging anyone affected by violent crime to seek support. Specialist services are available for victims of assaults involving corrosive substances.
If you have information about violent crime in your area, contact Greater Manchester Police on 101 or report anonymously via Crimestoppers on 0800 555 111.