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SDR / Investigations & evidence / Workplace investigations

Investigations & evidence · staff and leaver cases

Some leavers pack more than a coffee mug.

A client database copied into private cloud storage, a memory stick plugged in the evening before notice, a scrubbed laptop handed over with a smile — the traces nearly always survive. Our job is to surface them lawfully: secured early, examined to a proper standard, and reported so HR and your legal advisers can act.

Reports fit for court — CPR 35 / CrimPR 19 Chain of custody recorded Impartial & confidential

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The tracks they leave, and where to look.

USB connection logWindows keeps a record of every drive plugged in, and when it happened. A USB stick attached at 1am, two days before a resignation, says what it says.
Uploads to cloud & personal mailOneDrive, Dropbox, Google Drive and private webmail all leave marks — browser history, sync records, upload debris — that outlast the clear-out.
Bulk deletion & wiper softwareWipers and mass deletions mark the disk themselves: which tool ran, when, and — often the giveaway — what it failed to reach.
Putting it in orderOne artefact alone proves little. Line them up — documents gathered, stick inserted, upload finished, wiper launched — and you have a sequence a tribunal can follow.

What keeps an investigation lawful.

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The requirementWhat that means in practiceHow we meet it
DPA 2018 / UK GDPRYou need a lawful basis to look at company kit — normally legitimate interests, weighed up and recordedKept to the suspicion; no more data than needed
ICO guidance on monitoring (October 2023)Openness as standard; an impact assessment where risk is highYour policies read first; we flag when a DPIA is due
Working covertlyDefensible only in rare cases — suspected criminality or gross misconduct — signed off at senior levelBefore anything begins we want the authorisation named, in writing
The ACAS standardA fair, even-handed enquiry ahead of any disciplinary stepAn independent examiner; the conclusions stay ours, not HR's
Weight at tribunalHow material was gathered is balanced against what it provesA documented chain of custody that adds weight rather than doubt
Sending it in: kit and media are sent by tracked, fully insured post to our secure intake lab — return postage is free — or ring us first and we'll settle on the safest route for your case. More on the contact page.

Each stage of the job, in order.

Browse the casebook →
01

Discussed privately, priced in writing Free

Every instruction opens with a private discussion: the events so far, the devices and accounts involved, and the question the evidence has to settle. Before any examination is carried out you get one fixed quote in writing — and that first scoping stage is free.

Discreet scopingQuote fixed in writingPrecise question agreed
02

Their machine imaged early

Whatever came back — laptop, tower or bare drive — is imaged behind a write blocker within days, before a rebuild, a handover or a curious look destroys the artefacts.

Imaged within daysAhead of any rebuild
03

Trace where it went

From the image we pull back device connections, cloud and webmail traffic, deletions and any wiper that ran, then order them into a sequence: what went, when, and by what route.

USB and cloud tracksSequence of deletions mapped
04

A report you can use

A written account of what was found, pitched so HR and your solicitors can use it — built around the ICO's 2023 monitoring guidance and the ACAS test of a reasonable enquiry.

Written with tribunals in mindMatched to ICO and ACAS
05

Preserved, produced, defensible

What comes back to you is the full set — the report, its exhibits, the underlying files — along with hashes, continuity logs and the notes we made as we worked. Should another expert or a tribunal later probe it, every step can be retraced.

Report with exhibitsHashing & continuity maintainedHolds up under challenge

What the bench sticks to

  • Reissuing the kit does the most damage — a well-meant rebuild for the next starter finishes off more leaver cases than any wiping tool.
  • The findings are the examiner's to write — case law has been critical of HR shaping what an investigator concludes, so ours reach you unedited.
  • Read supplier research as a forecast, not a finding — published figures for how often leavers take data range from roughly a third to the majority; the trend is genuine, the precise percentages are sales copy.
  • Someone's own phone or laptop is another matter — examining BYOD kit needs consent or a solid legal basis; we'll tell you where the line sits before we touch anything.

The number worth quoting: one of the more substantial pieces of research — the 2013 Symantec/Ponemon survey — found roughly half of workers who had lately resigned or been let go admitted holding on to confidential company material. Later numbers come mostly from suppliers and scatter widely; from the bench the position is plainer: where an employer already suspects it, the artefacts usually line up.

Out of the casebook.

EX · SDR-2026-0539CONFIRMED ✓

Three weeks early, the client list walked

It began when a Salisbury employer read a rival's pitch deck. The timeline filled in the rest: documents gathered into a single folder, a private cloud account logged into, uploads finished — twenty days ahead of the resignation letter. Undertakings settled the matter, and fast.

Resolved on undertakingsTimeline within 7 days

While it's still with you.

Do

  • Recover the kit, shut it down, and stop there
  • Hold their mailbox and accounts before closure wipes the contents
  • Re-read what staff were told about monitoring in your policies
  • Have anything covert signed off in writing, at senior level

Avoid

  • Hand the laptop to IT to rebuild for someone else
  • Poke around the files to decide whether it's worth pursuing
  • Put it to the person before the evidence is secured
  • Run covert monitoring without exceptional grounds on record

Put to us privately, answered straight.

May my employer go through my work laptop?

Usually yes, provided there's a lawful basis and, as a rule, staff have been told it may happen — that's the purpose of a workplace policy. Examining covertly is the exception, kept for suspected criminality or gross misconduct signed off at senior level.

Does UK law allow covert monitoring?

Only in rare cases. Under the ICO's October 2023 guidance, covert monitoring can be justified in unusual situations such as suspected crime — signed off at senior level, narrowly scoped and written down.

A leaver may have taken data — what's the first step?

Lock the device away untouched, keep their accounts intact, and get the machine imaged before any colleague starts poking about. A casual look through the files destroys the very traces that prove data left.

Would this evidence hold up in a tribunal?

A tribunal balances relevance against the way material was gathered. Lawful basis, a proportionate scope and a recorded chain of custody are what lift a folder of screenshots into evidence that carries weight.

Evidence has a shelf life. Don't wait.

Loops write over themselves, traces fade, deadlines run out. Start a case early — scoping it costs nothing and stays confidential.

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