Every workplace investigation begins long before the first interview takes place. The decisions made in the planning phase shape the entire trajectory of the process, influencing not only whether the investigation reaches sound conclusions but also whether those conclusions can withstand scrutiny from grievance arbitrators, human rights tribunals, courts, and the employees who must live with the outcome. Planning an investigation is not merely an administrative exercise. It is a substantive process that requires careful thought about what questions need answering, who has authority to answer them, and how long the process should reasonably take. When employers fail to plan adequately, they often find themselves conducting investigations that wander beyond their original purpose, take far longer than necessary, or produce findings that cannot be defended because the investigator lacked clear direction from the outset.
The concept of investigation scope refers to the boundaries that define what the investigation will and will not examine. Scope determines which allegations will be investigated, which potential witnesses may be interviewed, what documents and records will be reviewed, and what timeframe of conduct is relevant. Establishing scope requires employers to think carefully about what they actually need to know in order to make informed decisions about the workplace situation before them. Too narrow a scope risks missing important context or related misconduct that should inform the employer's response. Too broad a scope can transform a focused inquiry into an unwieldy process that consumes disproportionate resources, delays resolution, and subjects employees to unnecessary intrusion. The skill lies in finding the appropriate boundaries for each unique situation.