CLEETHORPES pervert Steven Mathieson was locked up for two-and-a-half years after admitting having indecent images of children.
Police arrested Mathieson, 45, of Wardall Street, for harassment and found the images on his laptop.
He admitted harassing a woman between March 1 and 19, which Judge David Tremberg described as "calculated, vindictive and devious".
Grimsby Crown Court heard some of the vile texts and messages he sent to the woman and her family.
Judge Tremberg sentenced him to 15 months in prison for possessing the indecent images and 15 months for harassment. Both sentences will run consecutively.
Prosecuting Andrew Bailey said there were repeated text messages sent to an ex-partner and letters left on the windscreen of the car of the woman's father making allegations about her.
Mathieson was arrested on March 23 when police found his laptop had been used just an hour before to look at child pornography.
They found a total of 118 indecent images of children. In interview, Mathieson said he had looked at pornographic images but not child pornography.
Mr Bailey told the court of previous harassment of a woman by Mathieson after a relationship breakdown in 2002.
For Mathieson, Richard Hackfath said his client regretted his behaviour.
He said: "He does not deal positively with the breakdown of relationships."
He said the images found on the computer were not for sexual gratification.
"He said his client was seeking help from health care staff in prison for his "sexual proclivities".
