British police are combing for this suspect — but online trolls keep getting in their hair.

In a head-scratching warning, Gwent police in Wales said bullies who mock a convicted drug dealer’s unfortunate ‘do may be prosecuted for harassment.

“Please remember that harassing, threatening and abusing people on social media can be against the law,” police wrote on Facebook, alongside a mugshot of the sparsely haired suspect, Jermaine Taylor. “If you say something about someone which is grossly offensive or is of an indecent, obscene or menacing character, then you could be investigated by the police.”

The department released Taylor’s photo in hopes of nabbing him and sending him back to jail for violating terms of his December 2018 release.

But public attention instead went to the 21-year-old’s distinctive receding hairline, sparking mostly good-natured jokes.

“He’s vanished into thin hair,” Lawrie Hillman wrote, while Lea Hook joked, “He was last seen in town; Police are combing the area.”

“You need to retrace his steps with a fine-tooth comb….and then please give it back to him,” Simon Townend wrote, while Nick Sleek Meek said, “Looks like his hairline is on the run too.”

Gwent police later said that many of the comments “made us laugh,” but stressed, “When the line is crossed from being funny to abusive, we do have to make sure we are responsible and remind people to be careful about what they write on social media.”