Traces Of Evidence Slot Review
by GeniiReleased May 3, 2018
Free demo - play instantly in your browser
Traces Of Evidence is a 5x3, 40-line Genii Saucify slot with a CSI vibe, three scatter types, and a morgue-set Autopsy bonus where you pick 5 body areas on a John Doe.

Specifications
| Game Type | Slots |
|---|---|
| RTP | 96% |
| Volatility | Medium |
| Grid | 5x3 |
| Paylines | 40 paylines (player-selectable 1-40) |
| Min Bet | $0.01 |
| Max Bet | $50 |
Traces Of Evidence Slot Overview
A homicide scene after dark, and the reels are the evidence. Genii built Traces Of Evidence as a straight CSI procedural: police tape stretched over the top of the grid, cruiser lights bouncing off wet asphalt, bullets and a bloodied pistol and a toe-tagged body under a sheet sitting on the reels. Nothing cartoonish anywhere in it.
Underneath the mood it's a plain 5x3 game on 40 lines. The odd part is the symbol set. Three separate scatters share the reels: one pays on its own, one hands out free spins, and one drags the player off the reels and into the morgue for the Autopsy round. That last one is the reason to load it.
Theme & Design
The background is a single unbroken street shot. A hooded figure stands in silhouette at the lower left with a pistol at his side, red and blue light smearing across the puddles from the cruiser parked behind him, a second set of tail lights glowing away in the rear. Over the top runs a yellow POLICE LINE DO NOT CROSS banner carrying the title in blunt black capitals. The crime scene art is photographic rather than illustrated, and that is what sells it.
The best touch is the card ranks. Instead of carved letters they are petri dishes, glass lids and all, each letter grown inside in a smear of coloured culture, pink for one, green for another. The FACE MATCH symbol is a database terminal holding a clean input photo against a battered, bloodied mugshot, stuck forever at 10% analysed. And when a line connects, the rest of the grid drains to black and white while the winning symbols keep their colour and a DNA trace scrolls underneath them. Cheap trick. Works every time.
Symbols & Paytable
| Symbol | Payout |
|---|---|
| Police Badge Wild | 40 / 300 / 3,000 coins for 3/4/5substitutes everything except the two feature scatters, and pays its own line |
| Detective (top line symbol) | 40 / 300 / 3,000 coins for 3/4/5identical to the Wild, so five of either is worth the same |
| Fingerprint Scatter | 8 / 15 / 20 free spins for 3/4/5no coin payout of its own, pure trigger, pays from anywhere |
| Crime Scene Photo Scatter | triggers the Autopsy round on 3 or moreno coin payout, works in the base game and inside free spins |
| Paying Scatter | 2 / 8 / 20 coins for 3/4/5multiplied by total credits wagered, triggers nothing |
| Toe-Tagged Corpse | 35 / 80 / 250 coins for 3/4/5 |
| Bloody Pistol | 30 / 60 / 100 coins for 3/4/5 |
| Bullets | 20 / 25 / 80 coins for 3/4/5 |
| Face Match Terminal | 14 / 20 / 50 coins for 3/4/5 |
| K Petri Dish | 10 / 15 / 40 coins for 3/4/5 |
| Q Petri Dish | 6 / 10 / 30 coins for 3/4/5 |
| J Petri Dish | 4 / 8 / 20 coins for 3/4/5 |
Features & How They Work
The Autopsy Round
Three or more crime scene photos anywhere on the reels pull the player into a morgue to examine a John Doe. The examination works through the body one area at a time. Some spots give up a cash prize, some come up empty, and whatever gets found is totalled and paid at the end, scaled to the bet that triggered it. There is no wheel, no ladder, no meter. Just a body and a set of attempts.
The rule that matters: this can trigger during free spins as well as in the base game. Most Genii titles switch their bonus triggers off once free spins begin, so the double-bonus scenario here is worth knowing about even though it is rare.
Free Spins
Three, four or five fingerprint scatters anywhere award 8, 15 or 20 free spins. The round retriggers on the same scatter count, and the bet and line selection stay locked to whatever was running on the triggering spin.
What the round does not have is a multiplier. Not x2, not x3, nothing. Wins pay at their normal values, which puts this well behind the studio's usual free spins design, where doubling or tripling is close to standard.
The Badge Wild
The Wild is a Las Vegas Metropolitan Police star, gold and enamelled, and it substitutes for every symbol except the fingerprint and crime scene photo scatters. It also pays a line of its own at 40, 300 and 3,000 coins for three, four and five.
Those are the same numbers the highest regular symbol pays, which flattens the top of the table. Landing a full line of Wilds should feel like the payoff of the session. It pays exactly what a full line of the top symbol pays.
The Scatter That Only Pays
The third scatter type does nothing except pay. Three, four or five anywhere award 2, 8 or 20 coins multiplied by the total credits wagered rather than by a single line, so it hits regardless of the payline layout and regardless of how many lines are switched on. Small money, but it turns up on spins that would otherwise be dead.
Screenshots

How Traces Of Evidence Plays
The rhythm is old-school 40-line. Something lands often, and most of what lands is worth less than the spin that produced it. A three-of-a-kind at 4 or 10 coins on a two-coin line barely moves the balance. So the drift downward happens in small increments instead of long dry cliffs, which is easier on the nerves and slower to resolve into anything.
The tension is unevenly distributed. Free spins arrive and pass without changing the temperature much. The morgue is the opposite: slow, deliberate, one reveal at a time, with a fair chance of turning up nothing at a spot the player chose. It is the only stretch of the game where anyone leans forward. Everything around it is time spent waiting for a trigger, and for my money that wait runs longer than the payoff justifies.
Pros & Cons
Pros
- Photoreal crime-scene art with a mature tone that is rare in Genii's catalogue
- Petri-dish card symbols are the smartest piece of theming in the game
- The Autopsy round can trigger inside free spins, which most Genii titles block
- Bets stretch from $0.01 to $50 with lines adjustable from 1 to 40
Cons
- Free spins carry no multiplier, so the round is only extra spins at normal value
- Autopsy examinations can come up empty and the round ends either way
- No buy feature, no gamble, and no published max-win ceiling to aim at
- The top-paying symbol matches the Wild exactly, which flattens the premium hits
Is Traces Of Evidence Worth Playing?
Genii spent the budget on atmosphere and it holds up. This is one of the few games in the studio's catalogue that treats an adult like one, and the morgue examination is a proper idea rather than a generic pick round with a crime skin on it. Letting it fire during free spins was the right call too.
The maths behind it does not keep pace. There is no published ceiling to chase and nothing above the 3,000-coin five-of-a-kind, which on a two-coin line is a good hit and not much more than that. Anyone loading this is loading it for the mood and the morgue, not for what the reels do in between (which, on a 5x3 line game built in 2018, is not much).
Frequently Asked Questions
How do you trigger the Autopsy bonus in Traces Of Evidence?
How many free spins does Traces Of Evidence award?
What is the RTP and volatility of Traces Of Evidence?
Does Traces Of Evidence have a bonus buy?
Can under-18s play Traces Of Evidence?

Reviewed by Arina, PR & Content Manager
PR & Content Manager at SlotsReach
Published 7 Aug 2026 · Updated 7 Aug 2026