Stephen Bryant, 58, had been online messaging an individual who he wrongly believed was a 13-year-old girl.
Bryant was messaging an online child activist group, posing as the girl, on Facebook between July 28 - July 31, 2019.
Despite the decoy telling Bryant that she was 13, he asked for photos and to meet up for sex.
Bryant was then arrested on August 4, 2019.
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On Thursday (February 29), at Peterborough Crown Court, Bryant, of Long Drove, Murrow, near Wisbech, was jailed for 10 months, having pleaded guilty to attempted sexual communications with a child.
A charge of attempting to incite a girl to engage in sexual activity, which Bryant denied, was ordered to lie on file.
DC Lee Lombardo said: “We will do everything in our power to bring those who look to harm children to court so I am glad Bryant has faced justice.”
You can make a disclosure through Sarah's Law on the force website to formally ask whether someone who has contact with children has a record for child sex offences or poses a risk to them.
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