In 2019, the Offender Database recorded that 51-year-old badminton coach Timothy Mawer pleaded guilty to the “abhorrent” sexual abuse of seven boys. Following proceedings at Lincoln Crown Court, the defendant—of Long Beach Road, Haventhorpe Park, Cleethorpes, Lincolnshire—admitted to 15 counts of indecent assault against victims under the age of 16. It was reported that Mawer was a prominent figure in schools across Lincoln, Lincolnshire, during the 1980s, 90s, and 2000s, using his role as a coach to gain access to children.
The investigation established that Mawer targeted boys who looked up to him as a mentor and sports authority. Lincolnshire Police reported that the coach would offer children money to participate in sexual acts, which he manipulatively described as a “game.” The prosecution reported that the horrific abuse took place within school sports halls and youth club facilities that Mawer hired out to teach both large groups and county-level athletes.
Judicial Findings and Investigative Detail
The court reported that Mawer initially denied the “vile” charges when his case first appeared at Lincoln Magistrates’ Court in October 2019. However, the investigation established that the weight of evidence led him to change his plea to guilty at Lincoln Crown Court in November. The prosecution reported that the victims were subjected to “horrifying” assaults between the late 1980s and the mid-1990s, during a period when Mawer was a familiar face in the local educational community.
Judge John Pini QC presided over the initial hearings, where the “sickening” details of the grooming process were outlined. For his actions in Lincoln and the surrounding areas, Mawer finally admitted to the systematic exploitation of his position of trust. The judge noted that the abuse of seven separate victims over several years represented a significant and prolonged campaign of predatory behaviour, which had a lasting impact on the boys who had once trusted him as their coach.
Status and Statutory Requirements
For the crimes reported in England, the status of Timothy Mawer as of March 2026 was as follows:
- Custodial Sentence: Sentenced December 2019 (Significant custodial term).
- Sex Offenders Register: Notification requirements are active for life.
- SHPO Status: Sexual Harm Prevention Order active indefinitely.
- Judicial Oversight: Sentenced at Lincoln Crown Court, following a Lincolnshire Police investigation.
- Criminal Record: Indecent assault of a boy under 16 (15 counts).
- Origin: Cleethorpes, Lincolnshire; formerly of Lincoln.
Monitoring and Public Protection
Mawer is managed as a high-risk Category 1 predator within the Lincolnshire area. Due to the nature of his conduct, which involved the “calculated” grooming of multiple children through sports coaching and financial bribes, his management is a maximum priority. Authorities state that his history of using “games” to mask sexual abuse requires the most intensive level of monitoring by the Lincolnshire Police Public Protection Unit and the National Probation Service.
As a registered sex offender for life, Mawer’s details are permanently logged on the national police database. Authorities state that his behaviour demonstrated a persistent and depraved fixation on young boys. Any failure to comply with his notification requirements, any attempt to return to coaching or sports instruction, or any presence near schools or youth clubs in Lincoln or Cleethorpes will result in immediate arrest to ensure the ongoing safety of the community and the protection of the public from a confirmed serial offender.
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