Logo

Memory and a sharp eye: how police officers and detectives solve tough cases

Memory and a sharp eye: how police officers and detectives solve tough cases

2023-06-22

A Hsinchu police officer recently made headlines when he recognized a suspect at large on the street through a car window. His sharp observational skills led to the suspect’s arrest. Today we take a look at some of the skills police officers and detectives need to solve tough cases. According to Hsinchu police, a good memory is vital. Many cases are solved with CCTV footage, but that still requires police to know the face when they see it. They also shared how doing research on the suspect’s background can be useful. When the suspect knows the police are clued up, they’re less likely to try to hide what they’ve done.

A flat nose, large ears, a square face. This drawing clearly captured the defining features of the suspect’s face. Even the slight wrinkles are included. This is the drawing that helped the Hsinchu officer identify the suspect.

Liu Hsing-wei
Police officer, Hsinchu County Hsinhu Precinct
In cases where there have been serious crimes, theft, repeated drug offences, or repeated offences in general, we prioritize memorizing the distinctive features of their faces.

To spot a suspect, officers also need to understand suspects’ backgrounds, their tactics and frequently visited locations, as well as the clothes they tend to wear. Using all those bits of information, they’re more likely to spot a fugitive.

Many criminal investigations now rely on CCTV footage, which means a strong memory is even more useful than ever.

Yeh Jih-jen
Detective, Hsinchu County Hsinhu Precinct
You can work out who the person is just from looking at CCTV footage. You can spot them at a glance and that cuts down the length of the investigation a huge amount. Especially now, many cases are solved by accessing CCTV cameras.

Officers can also pick up clues about potential suspects while walking down the street.

Hsu Jui-fu
Taoyuan Patrol Police Corps
It’s the body language. Sometimes you can tell someone’s a drug user from behind.

Taoyuan Patrol Police Corps scan the streets like radar, searching for trouble. As one officer explained, only experience can earn that kind of eagle eye.

Hsu Jui-fu
Taoyuan Patrol Police Corps
Sometimes we can use a rule of thumb with some observations. For example, why would somebody lower their head or turn around and try to leave as soon as they see a police officer? That’s obviously suspicious.

And when the police catch a suspect, if they’re inclined to deny everything, police have psychological tactics.

Yeh Jih-jen
Detective, Hsinchu County Hsinhu Precinct
The suspect doesn’t know you. But you, the police officer, know their name perfectly well. You can talk in detail about their background, and who they’re dating. That breaks down their psychological defenses. They get scared, intimidated. They think, “Wow, the police are amazing, they know everything about me.” That’s really helpful for future interrogations. They are less confident telling a pack of lies.

A good memory and observational skills are the basic tools of the trade for police officers and detectives. These skills mean more cases are solved and society has a little more protection.

警方有鷹眼特訓課程 熟記特徵逮人有一套

2023-06-22

日前新竹湖口派出所員警,在路上巡邏時隔著車窗,竟然認出對向車道馬路邊,低頭男子是通緝犯,立刻通報警網,果然順利逮到嫌犯。員警靠經驗、靠熟記資料,逮捕通緝犯。有時警方也會開設課程,來加強員警的辨識能力和辨識技巧,而且除了外貌外,還得盡可能掌握嫌犯的"基本資料",才能在看到人時,進行多方比對,確保萬無一失!也能在偵訊時,突破心防。

扁扁的鼻子、大大的耳朵,略為方正的臉形,這張畫像,不只把特徵清楚描繪,連臉上細微皺紋也沒少。有警察就靠著這張傳神畫像,認出通緝犯。

[[新竹縣新湖分局湖口所警員 劉星緯]]
“曾經犯下重大刑案的,或者是竊盜,或者是毒品慣犯,就是會有重複性,重複犯案的那種案件,會優先特別記下他的臉,特徵”

除了樣貌,也要了解犯人背景,犯案手法、常出沒地點,以及掌握經常性穿著等資訊,讓警方可以透過多方比對,更能確定就是人犯。

由於現在多數案件,都要靠監視器追犯嫌,強大記憶力就能派上用場。

[[新竹縣新湖分局偵查隊長 葉日仁]]
“光是看監視器,你就能知道這個(人)是誰,一眼就認出來了,很快的縮短偵查的時間,尤其現在很多刑案,都是靠調閱監視器來破案的”

有時員警也會在路上,"觀察"有沒有可疑份子。

[[桃園保安警察大隊第一中隊第五小隊長 許瑞富]]
“肢體語言,有時候毒品施用者 ,你從背後就可以感覺得出來”

桃園保大員警開車巡邏,眼睛像雷達掃描般,一一過濾。銳利的雙眼,全是經驗的累積。

[[桃園保安警察大隊第一中隊第五小隊長 許瑞富]]
“有時候我們會針對,我們的經驗法則,一些觀察,比如說看到我們警察經過,為什麼要低下頭,或者轉身準備要離開,就很明顯的可疑”

找到人,也確定沒錯,如果遇上狡猾嫌犯不認帳,這時就得靠心理戰。

[[新竹縣新湖分局偵查隊長 葉日仁]]
“嫌疑人不認識你,但是你這個警察,卻能一下子叫出他的名字,把他的背景,把他的交往對象都講得一清二楚的時候,這是完全可以擊潰這個嫌疑人的心防,他會嚇到,會震懾得住他,他會覺得這個警察太厲害了,對我一清二楚,對於之後的偵訊是非常有幫助,他比較不敢去扯謊”

警察辦案,有好的記憶及觀察力,絕對能無往不利。提高破案率,對民眾的生活安全也更多了一層保障。

Related News

KMT lawmakers say presidential candidate should be switched if Hou’s ratings don’t pick up

2023-06-22

ITRI Elite Awards honor world-first eye drop treatment for wet macular degeneration

2023-06-22

Dragon Boat Festival sees customary games of standing eggs upright at Taipei Zoo, ice skating rink

2023-06-22

Theater show highlights Taiwan and Hungary’s shared democratic values

2023-06-22

How to wash a reusable cup: a peek inside a cleaning facility

2023-06-22