Probationary Inspector Aptitude Test - Hong Kong Police Force

Under Section 50 of the Police Force Ordinance (Cap. 232), a police officer may arrest any person whom he reasonably suspects of being guilty of an offense. If an Inspector is reviewing an arrest made by a Constable, which of the following is the most direct logical consequence of this section?

• AThe legality of the arrest depends on whether there was a reasonable suspicion of an offe…
• BA police officer must have a signed warrant from a magistrate before making any arrest un…
• CAn arrest is only lawful if the suspect is eventually convicted of the offense in a court…
• DOnly officers of the rank of Inspector or above are legally empowered to make arrests und…

Consider this witness statement: 'I saw a suspect in a blue jacket run out of the jewelry shop at 3:15 PM, carrying a black duffel bag. Immediately after, the shop alarm rang. I did not see anyone else leave the shop.' Which of the following represents an inference, rather than a direct fact stated by the witness?

• AThe suspect in the blue jacket stole items from the jewelry shop and triggered the alarm.
• BThe witness saw a suspect in a blue jacket leave the shop at 3:15 PM.
• CThe suspect was carrying a black duffel bag.
• DThe shop alarm rang immediately after the suspect ran out.

An internal briefing states: 'All probationary inspectors must undergo the leadership development course. Some officers who undergo the leadership development course are also assigned to the Police Tactical Unit (PTU). No officer assigned to the PTU is permitted to take extended leave during their first six months.' If these statements are true, which of the following must also be true?

• ASome officers who have undergone the leadership development course are not permitted to t…
• BAll probationary inspectors are assigned to the Police Tactical Unit (PTU).
• CNo probationary inspector is permitted to take extended leave during their first six mont…
• DEvery officer who undergoes the leadership development course is assigned to the PTU.

Under the Public Order Ordinance (Cap. 245), a public meeting of more than 50 persons, or a public procession of more than 30 persons, requires a Notice of No Objection from the Commissioner of Police. A community group plans to hold a walking march of 40 people along a public road. Which of the following is a direct logical deduction?

• AThe walking march constitutes a public procession of more than 30 persons and requires a…
• BThe group requires a Notice of No Objection only if the number of participants exceeds 50.
• CThe group is completely exempt from notifying the police because they are a registered co…
• DThe walking march is classified as a public meeting, so the threshold is 50 persons and n…

If a crime scene contains DNA evidence, it will be sent to the Government Laboratory for analysis. If it is sent to the Government Laboratory for analysis, the investigation timeline will be extended by at least two weeks. Which of the following is logically equivalent to these statements?

• AIf the investigation timeline is not extended by at least two weeks, the crime scene did…
• BIf the investigation timeline is extended by at least two weeks, the crime scene must hav…
• CIf a crime scene does not contain DNA evidence, the investigation timeline will not be ex…
• DIf the analysis is completed within a week, the crime scene was not analyzed by the Gover…

Witness A states: 'The suspect fled in a red sedan heading north on Nathan Road.' Witness B states: 'The suspect fled in a silver hatchback heading south on Nathan Road.' CCTV footage later shows a red hatchback heading north on Nathan Road at the time of the incident. What is the most logical assessment of the witnesses' credibility regarding the car's direction?

• AWitness A was correct about the vehicle's direction and color, but incorrect about its bo…
• BWitness B was correct about the vehicle's body type and direction, but incorrect about it…
• CWitness A was entirely incorrect, and Witness B was correct about the body type and color.
• DBoth witnesses were entirely incorrect about all aspects of the fleeing vehicle.

An analyst argues: 'The implementation of high-definition CCTV cameras in Mong Kok has reduced pickpocketing cases by 35% this quarter. Therefore, to eliminate street crime entirely in Hong Kong, we must install high-definition CCTV cameras on every street corner.' Which of the following identifies the primary logical flaw in this argument?

• AIt assumes that a measure which reduces a specific type of crime in a high-density area w…
• BIt fails to consider that CCTV cameras are less expensive to maintain than active police…
• CIt overlooks the fact that Mong Kok is the only district in Hong Kong where pickpocketing…
• DIt assumes that street crime was already decreasing before the CCTV cameras were installe…

Under police guidelines, all force used by officers must be necessary, proportionate, and lawful. If an officer uses force to subdue a non-compliant suspect, which of the following scenarios describes a clear breach of these guidelines?

• AAn officer continues to strike a suspect who has already been handcuffed and is lying pas…
• BAn officer uses a firm joint lock to subdue a suspect who is actively swinging their fist…
• CAn officer deploys pepper spray against a suspect who is charging at them with a raised m…
• DAn officer physically blocks a suspect who is attempting to run past a cordoned police li…

Consider the statement: 'No police officer who fails the annual shooting test is permitted to carry a firearm on active duty. Officer Wong is currently assigned to a desk-based administrative role where carrying a firearm is not permitted.' Which of the following must be true based on this statement?

• AWe cannot determine whether Officer Wong passed or failed his annual shooting test based…
• BOfficer Wong must have failed the annual shooting test, which is why he is on desk duty.
• COfficer Wong is permitted to carry a firearm, but only when he is off-duty.
• DOfficer Wong passed the shooting test but was placed on desk duty due to unrelated discip…

Passage: 'A key duty of the Cyber Security and Technology Crime Bureau (CSTCB) is to investigate hacking incidents. Hacking cases involve unauthorized access to computer systems. Under the Crimes Ordinance (Cap. 200) Section 161, obtaining access to a computer with a view to dishonest gain for oneself or another is an offense. This applies even if the system did not contain financial data.' Based on this passage, which of the following is true?

• AAn offense under Section 161 can be committed even if the accessed computer contains no f…
• BAccessing a computer unauthorized is only a crime if the suspect transfers money out of a…
• CThe CSTCB only investigates cases that involve local banks or financial systems.
• DSection 161 of the Crimes Ordinance does not apply to systems with strong security firewa…

A duty roster rules state: 'Every divisional inspector on night duty must conduct at least one spot check at the detention cells. If a spot check is conducted, it must be logged in the divisional diary. Last night, Inspector Chan did not log any cell checks in the divisional diary.' If the rules were followed, which of the following is a valid deduction?

• AInspector Chan was not on night duty last night.
• BInspector Chan conducted a check but forgot to log it.
• CInspector Chan was on night duty but failed to follow the spot check protocol.
• DNo spot checks were conducted by any officer in the division last night.

Witness Statement: 'The getaway car was a black SUV. I am positive the license plate started with UR or RU. It had 4 numbers, ending in 8. The second number was definitely a 5.' If the police are searching the vehicle database, which of the following license plates fits the witness description?

• ARU 2598
• BUR 5288
• CRU 1288
• DUR 3258

Consider this argument: 'Statistics show that in areas with regular police foot patrols, shop burglary rates are 25% lower than in areas without foot patrols. Therefore, foot patrols are the direct cause of the lower burglary rates.' Which of the following is the most critical vulnerability in this argument?

• AIt assumes correlation implies causation, ignoring other factors such as local commercial…
• BIt fails to prove that burglaries are a major crime concern in Hong Kong.
• CIt does not specify whether foot patrols are conducted by junior officers or senior inspe…
• DIt assumes that a 25% decrease is too small to be statistically significant.

A set of interrogation guidelines states: 'If a suspect invokes their right to silence, the interviewer must immediately pause the questioning. If the questioning is paused, the suspect must be offered water and rest. Last night, Suspect Tsang was not offered water and rest.' If these guidelines were followed, which of the following must be true?

• ASuspect Tsang did not invoke their right to silence.
• BSuspect Tsang invoked their right to silence but the interviewer ignored it.
• CThe interviewer paused the questioning but forgot to offer water.
• DSuspect Tsang was interviewed by an unauthorized officer.

Passage: 'Under the Weapons Ordinance (Cap. 217), possession of certain prohibited weapons, such as gravity knives or knuckledusters, is illegal without a license. C&ED handles import control, but the HKPF is the primary agency for domestic possession offenses. When a patrol officer finds a prohibited weapon on a suspect, the officer must seize the weapon and arrest the suspect immediately.' According to this passage, which of the following is true?

• AThe Hong Kong Police Force is the primary enforcement agency for domestic possession of p…
• BCustoms and Excise is responsible for prosecuting all domestic possession offenses of pro…
• CA patrol officer has the discretion to let a suspect go with a warning if the weapon is a…
• DProhibited weapons under Cap. 217 can be possessed by anyone as long as they are kept ins…

Read the argument: 'The average response time of our division to emergency calls has decreased from 8 minutes to 6 minutes since we added three new patrol vans. Therefore, adding more patrol vans is the only way to continue reducing our emergency response times.' Which of the following describes a logical error in this argument?

• AIt assumes that because adding vans reduced response time, it is the sole method availabl…
• BIt fails to consider that emergency calls are less frequent during night shifts.
• CIt assumes that response times should ideally be reduced to zero minutes.
• DIt overlooks the fact that patrol vans require regular maintenance which increases operat…

An officer's report states: 'If a suspect is cooperative, we do not apply handcuffs during transport unless the suspect is charged with a violent offense. Suspect Lee was handcuffed during transport today.' If the division's transport policy was strictly followed, which of the following must be true?

• ASuspect Lee was either uncooperative or charged with a violent offense (or both).
• BSuspect Lee was cooperative and charged with a non-violent offense.
• CSuspect Lee must have been uncooperative and charged with a violent offense.
• DSuspect Lee was uncooperative, but was not charged with a violent offense.

Passage: 'Under the Prevention of Bribery Ordinance (Cap. 201), a public servant commits an offense if they solicit or accept any advantage as an inducement or reward for performing or abstaining from performing an act in their official capacity. Advantages include gifts, loans, fees, or services. However, traditional items of nominal value, such as a calendar or diary, may be exempt under specific departmental guidelines.' Which of the following is a violation based on this passage?

• AAn Inspector accepts a discount on a personal car purchase from an auto dealer in exchang…
• BAn Inspector declines a dinner invitation from a local restaurant owner whose establishme…
• CAn Inspector accepts a standard departmental wall calendar from a community relations gro…
• DAn Inspector pays the full market price for a laptop at an electronics store owned by a f…

Statement: 'If a search warrant is issued, the police are authorized to enter and search the specified premises. If the police search the premises, they must compile a property seizure list. The police did not compile a property seizure list today.' Which of the following is a valid deduction?

• AA search warrant was not issued, or if it was, the search was not conducted.
• BA search warrant was issued, but the officers decided not to enter the premises.
• CThe search was conducted, but no property was found, so no list was needed.
• DThe premises were searched without a warrant being issued.

Passage: 'When conducting crowd control during public assemblies, police use a tiered barrier system. Water-filled barriers are deployed to direct foot traffic. Steel crowd-control barriers (commonly known as mills hurdles) are used to establish security cordons. Under operational guidelines, steel barriers must not be deployed without direct authorization from the regional commander.' What is the required protocol for deploying steel barriers?

• AThey must only be deployed with direct authorization from the regional commander.
• BThey can be deployed at the discretion of any patrol constable on duty.
• CThey must be deployed in conjunction with water-filled barriers at all times.
• DThey are only permitted for indoor assemblies and cannot be used on public streets.

In 2024, the Kowloon West region recorded 320 burglary cases. In 2025, the number of burglary cases increased by 15%. What was the total number of burglary cases in 2025?

• A368 cases
• B350 cases
• C380 cases
• D360 cases

A police patrol car intercepts a speeding vehicle that is initially 4 kilometers ahead. The police car travels at a constant speed of 120 km/h, while the speeding vehicle is traveling at a speed of 90 km/h in the same direction. How long will it take for the police car to catch up with the speeding vehicle?

• A8 minutes
• B6 minutes
• C10 minutes
• D12 minutes

During a drug enforcement operation, the Narcotics Bureau seized 18 kg of high-purity ketamine. If the street value of the ketamine is HK$650 per gram, what is the total estimated street value of the seized drugs? (1 kg = 1,000 grams)

• AHK$11,700,000
• BHK$117,000,000
• CHK$1,170,000
• DHK$18,000,000

A divisional police station has 120 Constables, 24 Sergeants, and 6 Inspectors. What is the ratio of Constables to Sergeants to Inspectors in this station, in its simplest form?

• A20:4:1
• B10:2:1
• C30:6:1
• D20:2:1

At a major public event cordon, 8 police officers can inspect 320 bags in 2 hours. How many bags can 12 police officers inspect in 3 hours, assuming the same average rate of inspection per officer?

• A720 bags
• B640 bags
• C540 bags
• D800 bags

An accident investigation team measures a skid mark of 45 meters left by a vehicle on dry asphalt before it stopped. Using the formula v = sqrt(2 * g * d * f), where g = 9.8 m/s^2 (acceleration due to gravity), d = 45 meters (skid distance), and f = 0.8 (coefficient of friction of dry asphalt), what was the estimated speed of the vehicle when it began braking? (Round to the nearest m/s)

• A27 m/s
• B32 m/s
• C24 m/s
• D35 m/s

A divisional station is allocated an annual operations budget of HK$6,000,000. If 45% of this budget is allocated to vehicle maintenance, 35% to tactical gear and equipment, and the remainder is split equally between community outreach and office supplies, how much money is allocated to community outreach?

• AHK$600,000
• BHK$1,200,000
• CHK$900,000
• DHK$800,000

In a patrol unit, the probability of selecting an officer who has completed motorcycle training is 0.30. The probability of selecting an officer who has completed water rescue training is 0.40. If these two training qualifications are independent, what is the probability that a randomly selected officer has completed neither of these training courses?

• A0.42
• B0.30
• C0.70
• D0.12

A regional command reviews the quarterly count of cyber-crime cases over four consecutive quarters: - Quarter 1: 200 cases - Quarter 2: 240 cases - Quarter 3: 288 cases - Quarter 4: 360 cases What is the average quarter-on-quarter percentage growth rate of cyber-crime cases from Quarter 1 to Quarter 4?

• A21.7%
• B25.0%
• C20.0%
• D26.7%

To cover a 24-hour shift, a police sub-division divides its officers into three overlapping teams. Team A works from 08:00 to 18:00 (10 hours). Team B works from 16:00 to 02:00 (10 hours). Team C works from 00:00 to 10:00 (10 hours). If each team has 15 officers, how many officers are on duty at 09:00?

• A30 officers
• B15 officers
• C45 officers
• D20 officers

Two police patrol launches are tasked with searching a rectangular marine sector of 36 square nautical miles (NM^2). Launch X can search at a rate of 4 NM^2 per hour, and Launch Y can search at a rate of 5 NM^2 per hour. If they work together, how long will it take them to search the entire sector?

• A4 hours
• B4.5 hours
• C3 hours
• D5 hours

The commercial crime unit solved 126 cyber-fraud cases last year. If this solved count represents 60% of the total cyber-fraud cases reported to the unit, how many cyber-fraud cases were reported in total?

• A210 cases
• B180 cases
• C200 cases
• D220 cases

A drug shipment of 5 kilograms of powder contains 75% pure heroin. The rest of the mixture is inactive diluents. If the market value of pure heroin is HK$900 per gram, what is the value of the pure heroin contained in this shipment?

• AHK$3,375,000
• BHK$4,500,000
• CHK$3,750,000
• DHK$2,500,000

A police patrol van consumes 12 liters of fuel per 100 km at an average speed of 80 km/h, and 15 liters of fuel per 100 km at an average speed of 100 km/h. If the van travels 200 km at 80 km/h and then 100 km at 100 km/h, what is the total fuel consumed?

• A39 liters
• B42 liters
• C36 liters
• D45 liters

A survey of traffic violations in a division shows that of the total cases, 40% are speeding, 25% are illegal parking, 15% are red-light offenses, and the remaining 30 cases are seatbelt violations. What is the total number of traffic violation cases recorded in the survey?

• A150 cases
• B200 cases
• C120 cases
• D180 cases

To staff a security post 24 hours a day, 7 days a week, requires continuous coverage. If each officer works exactly 40 hours per week, what is the minimum number of officers needed to cover the post, rounded up to the nearest whole officer?

• A5 officers
• B4 officers
• C6 officers
• D3 officers

A police drone patrols a rectangular perimeter of a secure compound. The length of the compound is 800 meters, and its width is 600 meters. If the drone flies along the perimeter three times, what is the total distance traveled by the drone?

• A8.4 kilometers
• B2.8 kilometers
• C4.2 kilometers
• D5.6 kilometers

In the physical fitness assessment, the score is calculated based on three exercises: push-ups (weight 30%), sit-ups (weight 30%), and a 2.4 km run (weight 40%). If a candidate scores 80 on push-ups, 90 on sit-ups, and 70 on the run, what is the candidate's weighted average score?

• A79
• B80
• C77
• D82

The police public relations branch resolved 35 complaints in May. In June, the number of complaints resolved increased by 20%. In July, it increased by a further 10% relative to June. How many complaints were resolved in July? (Round to the nearest whole number)

• A46
• B45
• C42
• D48

The braking distance of a police motorcycle is proportional to the square of its speed. If the braking distance at 40 km/h is 10 meters, what is the estimated braking distance at 80 km/h under the same road conditions?

• A40 meters
• B20 meters
• C30 meters
• D80 meters

Question: What is the total number of police officers in a divisional station? Statement (1): The ratio of Constables to Sergeants to Inspectors is 20:4:1. Statement (2): There are exactly 6 Inspectors in the station.

• AStatement (1) ALONE is sufficient, but Statement (2) alone is not sufficient.
• BStatement (2) ALONE is sufficient, but Statement (1) alone is not sufficient.
• CBOTH Statements (1) and (2) TOGETHER are sufficient, but NEITHER statement ALONE is suffi…
• DStatements (1) and (2) TOGETHER are NOT sufficient.

Question: How long does it take for a patrol launch to travel from Port A to Port B? Statement (1): The distance between Port A and Port B is 15 nautical miles. Statement (2): The patrol launch travels at an average speed of 10 knots.

• AStatement (1) ALONE is sufficient, but Statement (2) alone is not sufficient.
• BStatement (2) ALONE is sufficient, but Statement (1) alone is not sufficient.
• CBOTH Statements (1) and (2) TOGETHER are sufficient, but NEITHER statement ALONE is suffi…
• DStatements (1) and (2) TOGETHER are NOT sufficient.

Question: What is the percentage change in theft cases in a district from 2024 to 2025? Statement (1): There were 500 theft cases in 2024. Statement (2): The number of theft cases in 2025 was 425.

• AStatement (1) ALONE is sufficient, but Statement (2) alone is not sufficient.
• BStatement (2) ALONE is sufficient, but Statement (1) alone is not sufficient.
• CBOTH Statements (1) and (2) TOGETHER are sufficient, but NEITHER statement ALONE is suffi…
• DStatements (1) and (2) TOGETHER are NOT sufficient.

Question: How many fraud cases remain unresolved in the cyber crime unit? Statement (1): The unit has resolved 80 fraud cases this month. Statement (2): The number of unresolved fraud cases is 20% of the total fraud cases assigned.

• AStatement (1) ALONE is sufficient, but Statement (2) alone is not sufficient.
• BStatement (2) ALONE is sufficient, but Statement (1) alone is not sufficient.
• CBOTH Statements (1) and (2) TOGETHER are sufficient, but NEITHER statement ALONE is suffi…
• DStatements (1) and (2) TOGETHER are NOT sufficient.

Question: What is the ratio of male officers to female officers in a patrol unit? Statement (1): There are 120 male officers in the unit. Statement (2): Female officers represent 25% of the total officers in the unit.

• AStatement (1) ALONE is sufficient, but Statement (2) alone is not sufficient.
• BStatement (2) ALONE is sufficient, but Statement (1) alone is not sufficient.
• CBOTH Statements (1) and (2) TOGETHER are sufficient, but NEITHER statement ALONE is suffi…
• DStatements (1) and (2) TOGETHER are NOT sufficient.

Question: What is the speed of a fleeing smuggling speedboat? Statement (1): The speedboat is traveling 12 knots faster than the police interceptor launch. Statement (2): The police interceptor launch is traveling at 35 knots.

• AStatement (1) ALONE is sufficient, but Statement (2) alone is not sufficient.
• BStatement (2) ALONE is sufficient, but Statement (1) alone is not sufficient.
• CBOTH Statements (1) and (2) TOGETHER are sufficient, but NEITHER statement ALONE is suffi…
• DStatements (1) and (2) TOGETHER are NOT sufficient.

Question: How much money was spent on tactical equipment training in a division? Statement (1): The division spent 40% of its training budget on tactical equipment training. Statement (2): The division's total training budget was HK$200,000.

• AStatement (1) ALONE is sufficient, but Statement (2) alone is not sufficient.
• BStatement (2) ALONE is sufficient, but Statement (1) alone is not sufficient.
• CBOTH Statements (1) and (2) TOGETHER are sufficient, but NEITHER statement ALONE is suffi…
• DStatements (1) and (2) TOGETHER are NOT sufficient.