Repeat Offender Derek SEIP Was Arrested Again

Source: Area OPP
Date: Mon Sep 22 05:52:20 MST 2025

(ARRAN-ELDERSLIE, ON) – On August 19, 2025, at approximately 6:12 p.m., the South Bruce Ontario Provincial Police (OPP) received a report of an individual entering vehicles at night in the Town of Chesley. While investigating the initial complaint, police learned of numerous incidents involving the same individual over approximately a 3-year period.

Officers spoke with numerous residents and obtained grounds for several offences taking place in the Chesley area. On August 31, 2025, the individual was arrested after a lengthy engagement with police, bringing a large police presence to a residence along 1st Avenue North in Chesley. Members of the South Bruce OPP, OPP Canine, Crisis Negotiators, and the West Region Emergency Response Team (ERT) were involved.



Between multiple incidents, Derek SEIP, 31-years-old, resident of Chesley, has been charged with:

Fail to comply with probation order, CC 733.1(1) – 9 counts
Fail to comply with release order, CC 145(5)(a) – 4 counts
Fail to comply with undertaking, CC 145(4)(a)
Mischief, CC 430(1)(c) – 8 counts
Trespassing at night, CC 177 – 3 counts
Possession of weapon for dangerous purpose, CC 88
Utter threats, CC 264.1(1)(a) – 2 counts
The accused was held for a bail hearing on August 31, 2025, and subsequently remanded into custody.

The South Bruce OPP is requesting anyone with information to call 1-888-310-1122. Should you wish to remain anonymous, call Crime Stoppers at 1-800-222-8477 (TIPS) or submit a secure web-tip at www.cstip.ca, where you may be eligible to receive a cash reward of up to $2000.