The passage explains that Article 20(1) bars two things: declaring an act an offence for the first time after it was done, and increasing the penalty for an act after it was committed. Mr. A's department started an inquiry in 2012 against him for sexual harassment, a matter that was later criminalised under fresh Indian Penal Code, 1860 provisions added in 2013. Let's test each option against this rule.
Reading the four options together, only the last one respects both halves of Article 20(1): it lets the administrative inquiry proceed while blocking any retrospective criminal penalty.
So the correct answer is only inquiry may be conducted but no penal action can be taken against him after such inquiry.
Article 20(1) stops the legislature from making an offender worse off after the act is done, either by creating a new offence retrospectively or by increasing the penalty retrospectively. The question asks which of the four legislative changes would not be blocked by this rule. Let's look at each option.
Three of the four options make punishment heavier and get caught by Article 20(1); only converting a death sentence into life imprisonment softens the punishment instead of hardening it.
So the correct answer is Act of the legislature changing the punishment of death to life imprisonment.
Mr. A posted a blog on 19 April 2020. After that date, the Indian Penal Code was amended to create a fresh offence called Hate Speech, and Mr. A was proceeded against for the blog. The question is whether Article 20(1) shields him from this action. Let's check each option.
The key fact the other options miss is that a blog post is a continuing publication, not a single closed act, so its presence after the amendment can attract the new provision without breaching Article 20(1).
So the correct answer is Mr. A may be liable for the offence of Hate speech as the blog was not removed even after the amendment.
Parliament raises the juvenility age to below 20 in September 2020. Mr. A, aged 19 in April 2020, would now fall inside the new definition. The question asks how Article 20(1) treats this kind of change. Let's assess the options.
The reasoning turns on the distinction between substantive protections, new offences and higher penalties, which Article 20(1) blocks retrospectively, and procedural changes, which it does not.
So the correct answer is Mr. A would be considered a Juvenile and tried under the new procedure.
Parliament now allows offenders below 21 to serve their sentence in a probation house instead of prison. We are asked whether Mr. A, tried for his 2020 blog related offence, gets this benefit. Let's go through the options.
Because Article 20(1) is a one-way protection against harsher retrospective treatment, a retrospective law that is milder for the offender raises no constitutional problem at all.
So the correct answer is Mr. A will get the benefit of Probation of Offenders Act.