PCSP Investigador de Polícia common mistakes
PCSP Investigador de Polícia · Understand the traps and how to avoid them.
Reading a Portuguese interpretation passage by matching words from the question back into the text instead of reconstructing the author's argument, so that an inference question is answered with a sentence that merely repeats a keyword.
Time pressure and long texts push candidates into keyword scanning; they treat 'according to the text' and 'it can be inferred' as the same task and never check whether the chosen line actually supports the claim requested.
What to do instead
Before looking at the alternatives, write a one-line paraphrase of the passage's main claim and of the paragraph the question points to. Then classify the stem as literal, inference, or purpose. For inference items, reject any alternative that is stated verbatim but not entailed, and require the correct one to follow from the text plus logic alone.
Treating crase, regência and pronoun placement as memorized isolated rules, applying them mechanically without identifying the syntactic function of the term in that specific sentence.
Grammar is often studied as lists of forbidden constructions; candidates never practise analysing whether a verb is transitive, whether 'a' is article or preposition, or where the proclisis attractors sit in the clause.
What to do instead
For every grammar item, first label the governing verb or noun and its required preposition, then test substitution (trocar 'a' por 'ao', 'para a', masculine noun) and locate any proclisis attractor (negation, adverb, relative pronoun, conjunction). Build a one-page decision tree and apply it to 20 authentic-style sentences per session.
Solving quantitative problems by plugging numbers into a remembered formula without defining the variables, units and the quantity asked, producing answers that are dimensionally wrong or that answer a different question.
Exam habits from school reward formula recall; candidates skip the setup step and mis-handle percentages, rates, unit conversions and 'quantos a mais' style phrasing.
What to do instead
Impose a fixed three-line protocol: list knowns with units, state the unknown in words, then choose the operation. Estimate the answer's magnitude before computing, and re-read the final question sentence to confirm that the computed quantity is the one requested.
Confusing constitutional guarantees with their procedural remedies, for example attributing habeas data to liberty of movement, or treating habeas corpus as the remedy for access to personal records.
The remedies are studied as a block and their triggering rights blur together; candidates memorize names without anchoring each to the right it protects and to who may file it.
What to do instead
Build a two-column table pairing each remedy (habeas corpus, habeas data, mandado de segurança, mandado de injunção, ação popular) with the exact right protected, the standing rules, and one concrete scenario. Test yourself with scenarios only, naming the remedy and justifying it in one sentence.
Mixing up the phases and actors of criminal procedure, for example assigning the formation of the opinio delicti to the police inquiry or treating the inquiry as evidence that must be repeated in court.
The inquiry and the process are studied separately, so the boundary between investigative and accusatory acts, and the value of each piece of evidence, is never consolidated.
What to do instead
Draw a timeline from investigação to denúncia to instrução to sentencing, marking at each point who acts, what document is produced, and whether the act is dispensable or must be judicially repeated. Then answer questions by locating them on that timeline before choosing.
Answering criminalistics items by intuition about what 'seems' scientifically valid, without distinguishing chain of custody, sample integrity, and the difference between presumptive and confirmatory tests.
Forensic content is unfamiliar and visually persuasive; candidates conflate the expert's finding with its legal weight and ignore contamination and documentation requirements.
What to do instead
For each technique, memorize three facts: what it detects, whether it is presumptive or confirmatory, and what breaks its validity. Practise writing the chain-of-custody sequence (collection, sealing, labelling, transport, receipt at the lab) from memory and check every evidence question against it.
Applying the general rule of the Penal Code to a situation governed by special legislation, or importing thresholds and penalties from one special statute into another (for example drug quantity thresholds into weapons offences).
Special statutes are revised repeatedly and share vocabulary; candidates study them in isolation and never contrast the specific rule against the general one.
What to do instead
Keep a comparison sheet per statute listing the criminal type, the threshold or qualifying element, the penalty range, and the applicable procedure. When a question names a special law, check whether it excludes the general rule (especialidade) before answering.
Treating human rights as abstract declarations, so that questions on the proportionality of police use of force, or on the horizontal application of rights, are answered with slogans rather than legal tests.
Rights are memorized as lists of articles; candidates never practise applying necessity, proportionality and legality to a concrete police action.
What to do instead
For each scenario, run an explicit three-step test: legal basis, legitimate aim, and necessity plus proportionality of the specific measure. Write the conclusion as a short reasoned paragraph rather than a single word, and compare with the constitutional and conventional texts.
Believing that deleting a file, clearing browser history or removing an app erases digital evidence, and failing to distinguish preservation orders, seizure of devices and the validity of evidence obtained without a warrant or chain of custody.
Everyday familiarity with phones creates false intuitions about volatility and anonymity; candidates also confuse the technical procedure with its legal authorization.
What to do instead
Study digital evidence around three axes: volatility (what must be preserved first), legal basis (who authorizes seizure or access to stored data), and integrity (hash, image copy, lacunas). Answer by checking all three axes explicitly for the scenario given.
Answering ethics and institutional doctrine items by choosing the alternative that sounds most virtuous, ignoring the statutory duty, the disciplinary consequence and the distinction between ethical principle, deontological duty and legal obligation.
These items read like moral opinion, so candidates respond with common sense instead of the code of conduct and the institutional doctrine they were supposed to learn.
What to do instead
Memorize the code of ethics as a structure: principles, duties, prohibitions, and sanctions, each with one example. For each scenario, identify which duty is engaged, whether it is a duty or a prohibition, and what the prescribed consequence is, then select the option that matches the norm rather than the most flattering wording.